Dr. Harry Wolper
Meli
Boris Lafkin
Barbara Spencer
Dr. Sid Kullenbeck
Paul
Lucy Wolper
Pavlo
Mrs. Mallory
Mrs. Pruitt
Mr. Spencer
Mrs. Spencer
Prof. Brauer
Boom-Boom
Lyman
Karen
Arthur
Norman
Fred
Krauss
Hamberg
Bovi
Dr. Whitaker
Dr. Sutter
Dr. Franklin
Dean Harrington
Larry
Woman with Monkey
Guard
Guard
Martin Goodwin (uncredited)