|Series||The Secret Saturdays|
|Voiced by||Sam Lerner|
|“||Everyone has secrets. My family just has bigger ones...||”|
Zak Saturday is the main character of The Secret Saturdays. He is the son of Doc and Drew Saturday, nephew of Doyle, and brother to Fiskerton, Zon, and Komodo. Together with his family of Secret Scientists, he hunts and saves cryptids, creatures of myth with extraordinary abilities that aren't scientifically proven, like Bigfoot or the Chupacabra. In the technical term he is a hero, but he is Kur, the source of ultimate evil, with the ability to control all cryptids, and he has been known to be in cahoots with Argost to help him study his powers. However he wishes to do good, so his future is a hard one to read.
FusionFallEditIn FusionFall, Zak originally appeared as a preview NPC for the Birthday Bash, but was later added permanently along with Fiskerton at Mount Blackhead. If the player talks to him, he may ask if you've seen Komodo. He also randomly wonders aloud if Doyle has made it to the Darklands yet. Zak took part in the Mother's Day Event by participating in a mission given to the player by a KND SKWID. He seems to attract attention from the Fusion near the border of Twisted Forest, but lately there has been no sign of them bothering him. He sends the hero to investigate the Granite Grabber and Creeper King. After surveying them Zak discovers a Fusion lair near the heros postion and sends him to enter it and check on the Fusion inside. When inside the hero is attacked by multiple Creeper Kings and is forced to stand his/her ground. After defeating the Creeper Kings it is discovered that Fuse created a Fusion Zak to control the Fusion in the area. Fusion Zak attacks the heroes focused on destroying him, but in the end, the hero defeats Zak's Fusion counterpart.
- Oddly, on Veterans Day of 2012, he and Fiskerton disappered from Mount Blackhead and it's unknown to why this happens.
- Zak is curious when he hears that Fuse is trying to mix legendary cryptids with his toxic fusion matter, to create the ultimate fusion beasts. However, this theory has not been proven a real threat yet.
- It is unknown how Zak`s fusion counterpart was created.