Cetus is a large kraken-like creature and one of the pets of Eris. He was seen in the beginning with a giant scorpion, a large lizard, a Roc, and a unknown creature. Eris was demonstrating that she will make chaos to the Earth. She sends Cetus to attack the ships. Cetus attacks Sinbad and his crew. Spike went after the sea monster and bites one of his tentacles. Cetus flungs Spike into the air with a ripped tentacle in his mouth before being caught by a crewsman. Cetus shoots his spiked tounge and swallows one of the crew members. Sinbad sets a cannon and Cetus grabs it and it exploded inside him and he threw up the crews members with green slime everywhere. Cetus prepares to finish Sinbad by eating him, but he stabs his tounge with a sword and two sharp sticks on two masts were sliced off and they landed on Cetus, appearantly killing him. Cetus sinks into the ocean and grabs Sinbad. Eris appears and puts Sinbad in a large air bubble. She explained her sea monster is "dead" because of Sinbad. Sinbad apologized for harming her sea monster due to the creature's attack. After the meating was over, she realeased Sinbad and Cetus appears again behind Eris and he shown fine, well, and alive. In another scene, Cetus was seen with the other monsters while Eris was taking a bath and she wanted to see more action and turns the ocean into ice and summons her Roc.
Trivia
- Although Eris said Cetus was dead, but it shows Cetus was alive and well for a stange reason.
- He wasn't one of the monsters who surrounded the two characters (Sinbad and Marina) when they reached Eris' hideout, probably because Cetus had finished his job.