Roddy McDowall

Caesar

Don Murray

Breck

Ricardo Montalban

Armando

Hari Rhodes

MacDonald

Severn Darden

Kolp

Lou Wagner

Busboy

Natalie Trundy

Lisa

John Randolph

Commission Chairman

H.M. Wynant

Hoskyns

David Chow

Aldo

Buck Kartalian

Frank - Gorilla

John Dennis

Policeman

Paul Comi

2nd Policeman

Gordon Jump

Auctioneer

James Bacon

Ape (uncredited)

Rayford Barnes

Riot Control Commander in Plaza (uncredited)

William Bryant

Man at Auction (uncredited)

Jean Byron

Book Store Owner (uncredited)

Sam Chew Jr.

Controller (uncredited)

Francis De Sales

Auction Attendee (uncredited)

Daniel Keough

Jailguard (uncredited)

Jeffrey Sayre

Restaurant Chef (uncredited)