|Age||11-13 (The Secret Saturdays) |
|Powers and Abilities|
Freestyle Hand-to-Hand Combatant
|Equipment||The Claw |
Battle Glove (temporarily)
Tibetan Fire Sword (temporarily)
Cortex Disruptor (temporarily)
Reflex Disruptor (temporarily)
Freeze Tech (temporarily)
|Relatives||Doc Saturday (father) |
Drew Saturday (mother)
Fiskerton Saturday (adopted brother)
Komodo Saturday (adopted brother)
Zon Saturday (adopted sister)
Doyle Blackwell (maternal uncle)
Unnamed Grandparents (deceased)
Zak Monday (anti-matter counterpart)
|Voice Actor||Sam Lerner |
Ogie Banks (T.G.I.S.)
|First Appearance||The Kur Stone: Part One|
- "But take a look at all of this. Look at my own family. Then tell me again how I'm not the bad guy."
- ―Zak Saturday in Kur: Part Two
Zak is leanly built and average height and weight for his age. He has either a sweet smile or a cocky grin throughout the series. Zak has black hair and dark brown skin from his African-American father, but Caucasian features and a shock of white-blonde hair from his mother.
His clothing consists of yellow sweatpants, an orange shirt with an "S" on the front (which resembles a distorted silhouette of The Claw), and a black undershirt. It was shown that he wears white boxer shorts with grey hearts.
In T.G.I.S., he looks almost the same as before. He retains his salt and pepper hairstyle and skin tone. However, his hair is longer and he also sports three freckles on each cheek. Along with that, he now wears the same armor as his parents. He is also significantly taller.
In the beginning of the series, Zak is sometimes viewed as being reckless and irresponsible, but this is partly because he believes that his parents are babying him and thus tries to prove himself. A product of his environment, Zak seeks adventure at every turn, which is easily satisfied by his cryptid-researching family. He has an unorthodox upbringing that has taken him around the world and placed him in the face of danger since the day he was born.
He is very compassionate and family-oriented, caring for cryptids and his family. He has always felt close to cryptids, as seen when he comforts Fiskerton when he adjusts to life with the Saturdays, protecting him from Komodo, and welcoming in Zon, as well as setting free numerous cryptids in Cryptids Vs. Cryptids, and risking his own safety to help another cryptid in The Unblinking Eye. He would do anything to protect his family.
His intelligence and quick-wits are shown throughout the series, along with his quick reflexes. He is also a capable strategist, managing to hold his own against Tsul 'Kalu without a scratch or permanent damage, something which Doc attempted, only to come back with a blind eye.
After learning that he is Kur, Zak lost confidence in himself and began to think and fear he might turn to the side of evil. He suffered a major blow to his self-esteem, calling himself a monster and insisting that his family would be safer if he wasn't around to endanger them.
Before the Show
At around the age of four or five, Zak's family rescued and adopted Fiskerton. Zak bonded with him immediately, offering to let Fisk stay in his room. He introduced Komodo slowly to Fisk, so as not to scare him, and took the blame with Doc when Fisk accidentally broke Zak's bed. His words, "We're brothers now. No matter what happens," have stuck with Fisk ever since.
Having adopted Fisk, Zak is playing with him near the Judaculla rocks in the Smoky Mountains sometime later. He accidentally destroys the sacred site, angering the area's protector, Tsul 'Kalu. While Doc distracts him, Fiskerton carries Zak onto the airship, and they getaway. Zak is none the wiser to what happens next, only knowing that Doc ends up with the Hand of Tsul 'Kalu. He is told that Doc lost his eye in an "accident."
It was discovered in The Cannibal Curse that Zak has a special psychic ability to connect with cryptids, allowing him to control their actions to an extent as well as communicate psychically in their minds. Tamer cryptids seem to trust him instinctively, and even fiercer ones can tell that Zak is different from other humans.
His parents believe that with Zak's ability, he would be the only one with the power to stop Kur, a legendary cryptid said to be able to control all cryptids. Ancient artifacts seem to respond to Zak and allow him to amplify his ability.
Zak's primary weapon is The Claw, a combination short staff/grappling hook. The hook is a three-fingered claw called The Hand of Tsul 'Kalu which acts as a focusing device for Zak's powers, and a probable thunderbird claw due to Tsul 'Kalu shocking Doc with it in the flashback in the Return of Tsul 'Kalu episode. His power can be amplified if Zak is at a "mystic hotspot," a place infused with magical energy, like inside the Antarctic Cryptid. After he uses his power at a mystical hotspot, he becomes drained and possibly exhausted. He also seems to have the ability to make a wind-like aura around his body in Cryptid vs. Cryptid and an orange energy ball in Kur Rising.
Zak can control his powers with great concentration. In The Atlas Pin, he meditates with Drew and Fisk to stop the giant serpent of Kumari Kandam. In Shadows of Lemuria, when he is very close to the revealing and the relic, he could get in Fisk's brain and get rid of the parasite. In The King of Kumari Kandam there is the Royal Medallion of Kumari Kandam, which had this lyric: "Before the breath of Kur the sentinels will fall." If that thing really holds a part of Kur, it could make Zak even stronger than now.
Zak cares deeply for his cryptid "pets"/companions and even refers to them as his brothers and sisters. This corresponds to his bond with cryptids and possibly influences his cryptid powers. Zak also seems to be stronger than a normal child his age, as he is able to climb a radio tower carrying a full grown man in The Vengence of Hibagon and gets back up immediately after being thrown against a vent in Black Monday.
During the course of the show, his strength has improved. Also in Black Monday, Zak is able to hold his own against the three Monday cryptids and even slams Zon to the ground in the second episode, The Kur Stone: Part Two. No one was a physical match for him.
In Ghost in the Machine Zak has also fused with his brothers because of a machine created by former scientists in a lab on Honey Island. Because of this, he temporarily gains Fiskerton and Komodo's abilities. This version of Zak has trouble thinking because of having three brains. After this experience, Zak says that the three of them have gotten even closer and are now "DNA brothers." The machine was later destroyed by the Saturdays.
In The Kur Guardian, Zak, Doyle, and his old babysitter, Abbey Grey help Fiskerton find out more about Fisk's Lemurian heritage. Doyle and Fisk had kept the information secret at first but decided to share it with Zak because Zak is the only one Fisk trusts completely (Doyle learned the info from Rani Naga when he over heard her talking with V.V. Argost when he and the Saturdays were rescuing Fisk from Weird World).
In Shadows of Lemuria, Zak finds out Fisk is making trident-like shapes at every available moment. Fiskerton tells Zak he kept it secret because he is "scared for him." Later, Argost smuggles a Neural Parasite into the Saturdays House which eventually lands on Fiskerton. Fisk tears the house apart to create a divining rod that will reveal where Kur is, which happens to be Antarctica which Argost found out through the Parasite. Despite the fact that the madman V.V. Argost is his enemy, prior to Kur Rising, Zak was a fan of his show Weird World, and kept episodes on the main computer. In the Season One finale, Zak and his family go to Antarctica. Unfortunately for them, Argost is also there and has awakened the creature which is believed to be Kur. Argost manages to get to the beast's brain and controls it from within. Zak then gets the idea to also enter the cryptid';s body and fight Argost for the controlling of "Kur." His parents give him their weapons so he could have as much power as possible in the battle with Argost. Fiskerton follows Zak inside and aids him in the fight. Zak taps into his full power to defeat Argost and knocks the Antarctic Cryptid unconscious.
Doyle then uses the Naga Kur Detector to confirm what they just defeated is Kur. However, once Zak and Fiskerton are expelled from the body, the artifact glows not in the creature's presence, but in Zak's. Everyone, including Zak, is shocked by this, as he is revealed to be Kur reincarnated.
In the season two first episode, Kur: Part One, the Secret Scientists have discovered at some point that Zak is Kur. The family soon become fugitives. While the Secret Scientists are tracking him, Zak realizes his family is in danger. To make matters worse, the Nagas are also after Zak to lead them and all cryptids into a new era. Meanwhile, Doyle has a run-in with Leonidas Van Rook.
In Legion of Garuda, the Saturdays learn a sect of sorcerers were able to drive out the spirit of Kur in the past and begin looking for the group. They eventually meet Gokul, the head master of the legion, who tells them Kur can be driven out by using an artifact known as The Flute of Gilgamesh. It turns out the Nagas stole the flute centuries ago to protect Kur. But when the Saturdays locate the flute and let Gokul use it, they also find out that using it would kill Kur (Zak). The Saturdays, the Secret Scientists, and the Nagas save Zak, and the sorcerer disappears. When they all leave, Argost comes to where they had left the flute, and takes it.
In The Return of Tsul 'Kalu Zak goes to fight Tsul 'Kalu, after he returns to get the Hand from the end of Zak';s Claw. Zak gives up the Hand easily, but Tsul 'Kalu refuses it and wishes to fight for it honorably as a hunter. Then Zak begins to see visions of the dark future, every time he uses his powers on Tsul 'Kalu. In the end, Zak realizes these visions weren't his, but the hunter's fears. Zak gives up the Claw, saying that Tsul 'Kalu should take it back because, if even the good cryptids think he is destined for evil, he obviously doesn't deserve it. But then Tsul 'Kalu realizes that Zak is good inside, and leaves the Claw and parts ways with him.
In The Unblinking Eye, Zak is chased down by Epsilon and Francis to be recruited by their "people." When first escaping them easily, Zak convinces his parents to help a cryptid like they normally do. They track a Lake Van Monster in Istanbul, in a power plant. Soon Epsilon's people track Zak, and start to chase him wildly. Francis gets Zak, but unknowingly reveals a satellite is tracking their every move (later revealed to be the Rani Naga's relic which the "people" stole from Doyle strapped to a satellite). Doc and Drew go to space to disconnect the satellite, while Fisk, Komodo and Zak calm down the Lake Van Monster. Francis finds them and gets into a family feud argument with Zak. Francis suddenly shouts that Epsilon isn't his father. Zak suddenly pities him, after realizing Francis and Epsilon are clones. After a short time, Zak states that the Lake Van Monster doesn't care about labels, and Francis decides to let him go, which hints there might be a spurred friendship between them...even though their "goodbyes" were Francis saying "I guess it's a good thing we hate each other so much, huh?" and Zak replying with a smile: "I never wanna see you again, too, Francis.".
In Life in the Underground, Zak's birthday party is filled with surprises including a visit from Ulraj and Wadi. The Saturdays find out a town is being attacked by cryptids. When the Saturdays come to investigate they are attacked by some Kalabus. Zak, Wadi and Ulraj go underground with the cryptids, and cause a rockslide. Zak, Wadi, and Ulraj were being buried alive, Zak remembered Argost's words and managed to summon one of the cryptids to save them. Zak realizes he can control cryptids no matter the distance between him and them. They find out that the cryptids were making a survival colony to save themselves from Kur. Zak's crush on Wadi and hers for him is more obvious in this episode; for one thing, Wadi kisses Zak on the cheek. Zak returns to the clock tower to thank Argost, who then gives Zak a neural parasite to contact him with should the need arise despite Fisk's objections.
In And Your Enemies Closer, Zak is asked to remove a strange cryptid from Dr. Beeman's lab. In exchange the Secret Scientists will halt their pursuit on him for six months. Unfortunately, the shape-shifting cryptid appears to be immune to Zak's powers. Zak secretly places a neural parasite on Fisk's back to make contact with Argost. He then asks him how to stop it, and Argost helps by explaining that the cryptid has to be in a certain area where it can use only one form. Zak then lures the creature into a pool, and is able to control it, long enough for Fisk (under Argost's control) to seal the pool shut. But then while Zak explains his actions to Doc and the Scientists, Komodo discovers the parasite on Fiskerton's back. Paul Cheechoo assumes that Zak knew about it the whole time. Before Zak could explain everything, Argost's warship shows up, and Zak is forced by Arghost to leave in it, leaving everyone else puzzled and shocked. Argost releases a gas that knocks Zak unconscious. He later wakes up in a Munya cocoon on what Argost calls the most isolated island in the world. After seeing Argost use the smoke mirror to summon Zak Monday, Argost uses the Flute of Gilgamesh to steal Zak Monday's power for himself, thus killing Zak Monday in the process. Zak Saturday uses his power to control Munya to free himself to fight with Argost, who both try to control Munya as a weapon. Unfortunately, Argost gains the upper hand, and is about to finish him when suddenly, Tsul 'Kalu, Fiskerton, Komodo, and Doc arrive in the nick of time to help Zak. Argost and Munya escape to prepare for the possible destruction of the world. Once Argost leaves, Doc says that Fiskerton has explained everything about why he got help from Argost. Fortunately, Doc still trusts and loves Zak, saying that he was only worried about his safety. The episode ends with Doc nicely telling Zak that there is still a lot more explaining to do about why he trusted Argost. Zak responds by saying, "First we need an army of our own."
In War of the Cryptids, he shows mastery of his power, by controlling large amounts of cryptids around the world. He later made a deal with Argost to stop all the fighting. Sadly, after Van Rook's death, he has the "Kur" sucked out of him by Argost who later seemingly is utterly destroyed by fusing Matter and Anti-matter together, making him finally normal, but that was temporary. Zak is officially "dead" for 3 minutes, but ends up surviving thanks to his parents.
In T.G.I.S., Zak is revealed to still have his powers, albeit in a weaker form, most likely because he is still recovering. He teams up with Ben Tennyson and Rook Blonko to stop Dr. Animo and the resurrected Argost.
Doc Saturday is Zak's father. In terms of parenting style, he has always been more lenient than Drew, such as when he was willing to talk about Zak assisting them in fights or using his own Cortex Disruptor. His willingness to let Zak fight stems from a desire for Zak to be able to keep himself safe. Zak and Doc spar frequently, with Zak even winning noticeably often. Doc is who Zak seems to get most of his moves and fighting style from. Although Doc is less strict than Drew, he expects Zak to be able to act appropriately in dangerous situations and take them seriously. When he does raise his voice, Zak listens to him and shows respect. The more casual dynamic that they have in low-stress situations don't take away Doc's authority as a parent.
Drew Saturday is Zak's mother. She tends to be a lot more strict than Doc, often wanting Zak to stay somewhere safe and turning down the idea of giving him weapons flat-out. Although Zak can be pushy, he respects her answers on the matter. When Zak is put in danger, Drew becomes very overprotective, such as when she shot Zon out of the sky in The Kur Stone: Part Two for trying to fly off with him, or how she immediately attempted to shoot and kill Argost in War of the Cryptids for trying to get Zak to surrender to him. Zak finds this tendency annoying, as he always does when he thinks he's being treated like a child, but it has saved his life once or twice. Drew and Zak tend to be more openly affectionate with each other as well, touching or hugging often. Drew still considers Zak to be her "baby boy" and often points out his age as a reason why he shouldn't be fighting. She likely won't stop being overprotective any time soon.
Fiskerton Saturday is Zak's adopted brother and best friend. Zak trusts Fisk in a way that he doesn't trust anyone else, and the reverse is also true. They met when Zak was very young, only about four or five. Zak immediately welcomed Fisk to the family with open arms, helping him get comfortable around Komodo and covering for Doc when it looked like Fisk might get in trouble. Initially, he was very skittish and liable to run away at any loud noise, but Zak helped Fisk relax and open up, learning to trust again. Over the course of the series, Fisk and Zak often drag each other into all kinds of mischief and schemes, often switching off on taking the blame or blaming each other, depending on how angry their parents are. They have a lot of fun together and Fisk is almost always glued to Zak's side. He is the only one that knows about Zak's deal with Argost for the entire time that it lasts. Fisk also tends to be overprotective, which annoys Zak, particularly when it gets in the way of helping the rest of their family. Despite Fisk's great love for his brother, he gets jealous and feels ignored when their parents begin hyper-obsessing on Zak's safety over anyone else's. He also internalizes this mindset, believing Zak to be more important than him and sacrificing himself or putting himself in harm's way to save his brother. Zak does the same for Fisk, many times putting himself between Fisk and an attacker. It is safe to say that they would die for one another. There is no one else in the world who they trust more than each other.
Komodo Saturday is Zak's adopted brother and, in terms of behavior, comes across as the older brother. It's unknown how Komodo joined the Saturday family, but he was there before Fiskerton and Zak is very familiar with Komodo even in flashbacks, so it's likely that Komodo has been around since Zak was born, or possibly even before. Zak seems to be the only member of the family that Komodo is affectionate with, as he is often snippy with Fisk or dismissive toward Doc and Drew. He will tackle-hug Zak and lick his face, not unlike a dog might. He has also been shown to sleep at the foot of Zak's bed. Either due to his status as Kur or because he has known Komodo for most of his life, Zak can understand his brother with little effort, even when he's not making a sound. This mutual understanding might be another reason why Komodo favors Zak over the rest of the family. Zak seems to have a special regard for Komodo as well, communicating with him sometimes only through body language or gestures.
Zon Saturday is Zak's adopted sister and the newest addition to the Saturday family. Unlike Fisk and Komodo, who have spent about a decade living with the Saturday family, she is still new to domestication and tends to act more "animalistic" than Fisk and Komodo, although it does not make her any less intelligent. She is very fond of Zak especially, possibly because she emprinted upon him after her nest was destroyed by the Saturday's airship when they first met her. While the rest of the family is important to Zon, she has a special relationship with Zak. He is the only member of the family that she has been seen hugging. Likewise, Zak is a lot different with Zon than with Komodo or Fisk, often rewarding her for a job well-done with fish, and petting and cooing at her often. Zak is also very protective of her, almost like a father might be. As shown in the episode The Underworld Bride, he gets agitated when he thinks she's being treated poorly and shows visible distress at the idea of never seeing her again. Zak will often fly Zon in fights or if he needs to get closer to a cryptid without the risk of being attacked. She comes when he whistles for her and seems only to take his command. They are very in sync, as Zon hardly ever needs vocal cues from Zak. As far as siblings bonds go, they've gotten to be very close in a relatively short amount of time.
Doyle Blackwell is Zak's maternal uncle and, in a lot of ways, his role model. As shown in The Ice Caverns of Ellef Ringnes, Zak thought that Doyle was "the coolest guy he'd ever met" before he knew that Doyle was his uncle. Despite the fact that Doyle was working for Van Rook at the time, Zak was nothing but enthusiastic at the idea of having a long-lost uncle. At the end of the episode Van Rook's Apprentice, Zak still trusted Doyle, forgiving his apparent betrayal even if the rest of his family didn't. When Doyle was about to leave, Zak said, "We all make mistakes, but we have to forgive each other. That's part of being a family." This convinces Doyle to stay. Although Doyle doesn't have a lot of experience with having a family or being a team player, he has a soft spot for Zak. Doyle likes Zak's reckless and daredevil nature, though he's still mindful of Zak's safety and general well-being. He often hangs back to help Zak in fights or will use his jetpack to get Zak out of harms' way. Doyle isn't a good role model, but that doesn't stop Zak from wanting to impress him or be like him. Zak is always happy to see Doyle. It doesn't mean that Zak is above criticizing Doyle or admitting when he's done something wrong, such as in The Owlman Feeds at Midnight or The Kur Guardian, but he's a lot more forgiving and understanding of these things than his parents are. Like the rest of the family, Doyle wants to protect Zak at all costs, but their kinship seems to come from Doyle's lax attitude, protecting Zak without babying or belittling him. Doyle trusts Zak completely and the feeling is mutual.
Wadi is Zak's friend as well as his crush. Upon first meeting her in Eterno, Wadi was stealing from his family's car, so he obviously didn't consider her too favorably. After helping each other to cure the salt spreading through water in the Middle East, Zak considers Wadi a friend. The next time that Zak and Wadi see each other, in Curse of the Stolen Tiger, they have developed a bit of a rivalry as well as a mutual crush on each other. Zak denies this vehemently. He recognizes Wadi as skilled at what she does, hence his desire to surpass her and, of course, impress her. In the end, he looks like a fool in front of her anyway. It takes another year and a half or so for Zak and Wadi to meet up again. By the time that Life in the Underground rolls around, Zak is thirteen and has seemingly accepted his crush on Wadi. He gets excited when Drew points out that Wadi has been flirting with him and blushes and smiles a lot around her. This has the side-effect of making their interactions awkward, as Zak tries not to single Wadi out with Ulraj around, but she doesn't seem to mind the awkwardness. At the end of the episode, Wadi kisses Zak on the cheek and he watches her leave with a lovestruck look on his face.
Ulraj is Zak's best friend (after Fiskteron). Their initial meeting was only out of convenience, in order to help Ulraj get his kingdom back and for Zak to rescue his parents from Argost. During the process, they ended up hitting it off. Most of Ulraj and Zak's dialogue is them jabbing at each other, sometimes escalating to sparring in order to one-up the other. They appear to be evenly matched fighters. Ulraj does offer Zak advice on his cryptid powers, though, giving him a deeper understanding of how to communicate with cryptids other than simply attempting to exert his will over theirs. Their friendship is built off of mutual respect and, with that, a healthy, friendly rivalry. He doesn't seem to care that Zak is Kur, although, from a King's perspective, Ulraj might also find it valuable to be in good with someone so powerful. As it stands, though, Ulraj's behavior toward Zak hasn't changed since the reveal. In Life in the Underground, Ulraj even attempted to flirt with Wadi because he noticed Zak's interest in her and refused to lose to Zak in anything.
V.V. Argost is Zak's arch-nemesis. Or, at least, Zak's biggest threat other than himself. Originally, Argost didn't consider Zak as anything special, other than perhaps a novelty for his "unusual gift," as he remarks upon seeing Zak's cryptid-influencing abilities for the first time. Zak was a fan of Argost's T.V. show, V.V. Argost's Weird World, although he gradually loses his enjoyment of the program over the course of season one and is no longer even remotely interested by the beginning of season two. Argost has always gotten sadistic pleasure out of seeing Zak suffer, be it physical or mental. He will often go out of his way to make things painful, especially in season two. After the reveal that Zak is Kur in Kur Rising, Argost somehow found out and his interest in Zak increased greatly. As such, Argost spends all of season two manipulating Zak to eventually take Kur's powers for himself. Zak is fully-aware that he's being used, however, his desperation to control his abilities before he hurts anyone close to him outweighs the potential risks of letting Argost teach him. Argost's lessons prove to be useful, as he teaches Zak how to connect to cryptids without making eye-contact and how to reach them from miles away. If expanded upon, these skills could lead Zak to control every cryptid on the planet. Some of Argost's lessons are less practical and more mental, as shown in Into the Mouth of Darkness. Argost spends the whole episode telling Zak about a monster hidden in the mines and lures him down there, putting Zak in a position where he has to betray his family in order to follow Argost. Once alone, Argost reveals that there was no monster, really, and that Zak was the monster all along, saying, "You've lied to your parents, betrayed your own mother, and you're about to let the villain walk out of here so mummy and daddy don't learn the truth about our business relationship. I brought you here to discover a monster. And so you have." When Zak accuses Argost of planning the whole thing, he closes with, "There's a reason there are no happy, heroic tales of Kur. Congratulations on completing another lesson." In And Your Enemies Closer, Argost's manipulation pays off when Zak accidentally reveals to Doc that he's been cooperating with Argost the whole time. Argost convinces Zak to run off, leaving his dad and brothers behind in order to get away with Argost. By that point, Argost had planted into Zak's head the idea that he is a monster and that his family would never forgive him for what he had done, making it easy to convince him to run. Of course, Argost betrays Zak, knocking him unconscious and tying him up in order to summon Zak Monday using the Smoke Mirror of Tezcatlipoca. Once he has both Zaks, Argost uses the Flute of Gilgamesh to drain Zak Monday of his Kur powers, killing him in the process. Afterward, Argost announces that they have "one Kur too many" and attempts to kill Zak, but fails. In the end, though, Zak is the one manipulating Argost. Knowing that Argost is power-hungry and greedy, in War of the Cryptids Zak allows Argost to drain his powers in the same way that he did to Zak Monday. When the matter and anti-matter mix, Argost's physical body is destroyed in an explosion that completely demolishes Weird World. Zak wakes up three minutes later, having received emergency medical treatment, and says that he, "knew Argost was gonna try to use the Flute music," but he, "didn't expect to survive it."
Powers and Abilities
- Main article: Zak's Power
- Even without his power, Zak is still a formidable hand-to-hand combatant, with or without the Claw, as he has beaten opponents with more combat experience than him, such as V.V. Argost, Doc Saturday, and Tsul 'Kalu.
- It was also suggested by Ulraj in The Underworld Bride his power is only effective if the cryptid Zak is trying to influence at least partially wants to do what Zak is trying to get it to do. He can't completely take away another creature's free will.
The Kur Stone: Part One The Kur Stone: Part Two The Vengeance of Hibagon The Ice Caverns of Ellef Ringnes Guess Who's Going To Be Dinner The King of Kumari Kandam Van Rook's Apprentice Twelve Hundred Degrees Fahrenheit The Owlman Feeds at Midnight The Swarm At The Edge Of Space Black Monday Eterno Cryptid vs. Cryptid The Underworld Bride Ghost in the Machine Something in the Water Target: Fiskerton Once More the Nightmare Factory Curse of the Stolen Tiger The Kur Guardian Food of the Giants The Atlas Pin Paris is Melting Where Lies the Engulfer Shadows of Lemuria Kur Rising
Kur: Part One Kur: Part Two The Thousand Eyes of Ahuizotl Into the Mouth of Darkness Legion of Garuda The Return of Tsul 'Kalu The Unblinking Eye Life in the Underground And Your Enemies Closer War of the Cryptids
The Cannibal Curse Crying Wolf Way Past Bedtime Sticks and Stones The Storm That Shook Japan Escape From Weird World The Cave of The Cacus Meal Worms The Lost King of Africa: Part 1 The Lost King of Africa: Part 2 Attack of the Lake Monster
- Zak is the only character mentioned to age throughout the series, as Drew calls him eleven in The Kur Stone: Part 1, Doc refers to him as a twelve-year-old in Kur: Part 1, and the family celebrates his thirteenth birthday in Life in the Underground.
- His appearance hasn't changed, other than being slightly taller.
- Zak is a playable character in the Cartoon Network game, TKO along with Munya and Van Rook. Zak's special move is a laser beam that shoots from his head, probably representing Zak's power.
- Ironically, Rani Naga tried to kill Zak in The Atlas Pin and The Kur Guardian, the person/cryptid that she wants in order to create a new era of cryptids.
- In The Return of Tsul 'Kalu it is revealed that Zak was responsible for the loss of Doc's right eye, though it was unintentional.
- To keep Zak from feeling guilty, Doc and Drew told Zak that Doc lost his eye in an accident.
- It is mildly implied that Kur can affect Zak's decisions. In Kur: Part 2 Zak believed that the nagas would attack Hong Kong, but they attacked New York instead, giving the nagas a big advantage while the Saturdays were on the other side of the world.
- As of War of the Cryptids, Zak no longer has his Kur powers, though it is unknown if this is temporary.
- According to the show's lore, it should be, as Zak is Kur and, therefore, if his powers were gone forever, he would be dead.
- Ironically, even though he is Kur, he is best friends with a Lemurian.
- Zak is mixed-race, with his mother being of Caucasian descent and his father being African-American.