Buck Kartalian (August 13, 1922 - May 24, 2016) was an American actor from Detroit, Michigan. In 1968 he appeared in Planet of the Apes as a surly gorilla guard named Julius. As Julius, it was his job to make life as uncomfortable as possible for Charlton Heston's Taylor. Buck returned to the franchise in 1972 for Conquest of the Planet of the Apes. Buck had less screen-time in this film than he had in the first one, but he donned the ape make-up once again, this time playing a gorilla server named Frank.