Jack Palance is a rogue cannibalistic Tyrannosaurus and the main antagonist in the Dinosaur Revolution episode End Game and the End Game segment of Dinosaur Revolution's spin-off film Dinotasia.
He is red with white pits and divots on his skull. He is also known for cracking his neck before killing or fighting another dinosaur.
In the beginning of End Game, 65 million years ago and thirteen years before the meteor struck, Jack Palance and another T. rex named Stumpy fought on a beach over territory, but Jack defeated Stumpy by ripping off his left arm and ate it. His bleeding rival fled from the scene.
Two years afterwards, Stumpy and his mate Tinkerbell's babies are distracted by a noise coming from the forest one night and wander far from their nest in curiosity. Jack is the source of the noise and eats the twins, leaving Tinkerbell depressed.
The next day, Jack spots his enemies eating the carcass of a killed Triceratops and fights them for it. He was about to get the upper hand by ripping off Stumpy's right arm, but Tinkerbell distracts him by biting his leg. Stumpy kills his nemesis by headbutting him onto a horn on the Triceratops, which impales him through his neck. Stumpy and Tinkerbell avenge the loss of their offspring by eating the dead cannibal.
- Jack Palance is named after the famous American actor, arguably best known for his role as cowboy Curly Washburn in 1991's City Slickers.
- In both Dinosaur Revolution and Dinotasia, Jack Palace has the same role and death.
- Although he's the main antagonist, he only appears three times during the episode/film segment.