David Barnes
Sid
Elevator Operator
Lenny
Joe Layton
Harv Smithfield (as George O. Petrie)
Harv Smithfield
Rogers
Henry
Detective Handley
Dr. Quentin Tanner
Driver
Mr. Kimmel
Lester
Dr. Jonley
Dr. Black
Lt. Commander Dickery
Mr. Waterton
Col. Petrie
Max Wagner
Peter
Jack Blaine
Jack Pennell
Fraser
Martin
Joe Scanlon
Dr. Landowska
Everett Sloane
George
Chaim Zadok
Ferguson
Prosecutor (uncredited)
Hank
Barker
Sidney
Harv Smithfield
Sammy
Jack Blaine
Fox (voice)
Chalais
Chas. Kraus
Sifty
Judge Cochran
Dr. Evans
President MacCloud
Frank
Crowley
Uncle Louie
Mr. Harrington
Jack Blaine (as George O. Petrie)
Kyle Saxton
Warren Porter