A couple of the more interesting Apes stills that have come to light in
recent years feature four, shirtless, muscle-bound stuntmen on the set of
Planet of the Apes. In the
first photo, they're wearing background-gorilla masks. In the second, they're
holding the masks in their hands.
L->R: Seymour Koenig,
and Big Steve Merjanian.
The identification of the stuntmen came from the book
West Coast Bodybuilding Scene: The Golden Era, by Dick Tyler.