Harlan Pop the hadrosaur (he could be a corythosaurus) is a minor character in the Astrosaurs Academy series. He participated in Mr. Edvill's Megasaur Challenge, but his event was sabotaged by Bomp. Harlan was taken to Doctor Finkle's hospital and was enslaved by the carnotaurus's special mind-control plasters. He was later freed by Damona and helped Sergeant Snoop to capture the two villains, saving Blink, Dutch, and Teggs.