The Bull Allosaurus is the main antagonist in the Walking with Dinosaurs episode, "Time of the Titans". He and his partner first appeared hunting for prey, and his partner succeeded in killing the young Diplodocus. The bull Allosaurus encountered the Stegosaurus, and he backs down from an aggressive animal. Years later, he and his partner attack the Diplodocus herd, and the Bull attacks the young female protagonist. However she was saved when another Diplodocus strikes the Bull Allosaur with its tail.