Roddy McDowall character Caesar
Don Murray character Breck
Ricardo Montalban character Armando
Hari Rhodes character MacDonald
Severn Darden character Kolp
Lou Wagner character Busboy
Natalie Trundy character Lisa
John Randolph character Commission Chairman
Asa Maynor character Mrs. Riley
Joyce Haber character Zelda
H.M. Wynant character Hoskyns
David Chow character Aldo
Buck Kartalian character Frank - Gorilla
John Dennis character Policeman
Paul Comi character 2nd Policeman
Gordon Jump character Auctioneer
Dick Spangler character Announcer
Hector Soucy character Ape With Chain
James Bacon character Ape (uncredited)
Rayford Barnes character Riot Control Commander in Plaza (uncredited)
William Bryant character Man at Auction (uncredited)
Jean Byron character Book Store Owner (uncredited)
Sam Chew Jr. character Controller (uncredited)
Francis De Sales character Auction Attendee (uncredited)
Peter Eastman character Auction Attendee (uncredited)
Erin Fleming character Cafe Customer (uncredited)
Daniel Keough character Jailguard (uncredited)
Ron Pinkard character Controller (uncredited)
Jeffrey Sayre character Restaurant Chef (uncredited)
Ruth Foster character Woman in Plaza (uncredited)
