Whit Bissell
Prof. Frankenstein
Phyllis Coates
Margaret
Robert Burton
Dr. Karlton
Gary Conway
Bob / Teenage Monster
George Lynn
Sgt. Burns
John Cliff
Sgt. McAffee
Claudia Bryar
Arlene's Mother
Charles Seel
Mr. Sexton, the jeweler
Larry Carr
Young Man (uncredited)
Frank McLure
Party Guest (uncredited)
William H. O'Brien
Rooming House Boarder (uncredited)
Arthur Tovey
Party Guest (uncredited)
Marshall Bradford
Dr. Randolph
Angela Austin
First Victim
Russ Whiteman
Dr. Elwood
Paul Keast
Man at Crash
Gretchen Thomas
Woman in Corridor
Patrick Miller
Police Officer (as Pat Miller)
Joy Stoner
Arlene
George DeNormand
Party Guest (uncredited)
James Gonzalez
Party Guest (uncredited)
Norman Stevans
Party Guest (uncredited)
