Jack-Zila is a antagonist in TWD. He is a dinosaur brought back to life by Farquaad to fight The Meme Force. Jack-Zila first appeared in season 3 episode 9, and he acts as Farquaad's muscle until season 6, where Jack becomes a hero. He was then a supporting player until season 10, where Jack left for his own show called Jack-Zila's Anal Fun Time. When the show was ended after seven seasons, Jack was brought back to TDW as part of the main cast for two seasons. Jack then went back to JAFT when the show returned.

Personality-Jack-Zila is a fearsome dinosaur who will ram anything in sight. The only thing that can calm him down is some crispy apples.