Joe Brontowski was a young Trans-Time Corporation ranger.
He was caught in the jaws of a pteranodon before being picked up off the ground by Old One Eye, from whom he was rescued by Earl Reagan, but not before his legs were injured.
Unlike the other rangers, he came to realise that humans had no right to kill the dinosaurs.
During the siege of the Trans-Time base, he was imprisoned by the controller, but escaped with Reagan. The two arrived at the controller's office in time for Joe to be injected with poison by a giant spider.