Homicidal

Glenn Corbett

as Karl Anderson

Patricia Breslin

as Miriam Webster

Eugenie Leontovich

as Helga Swenson

Alan Bunce

as Dr. Jonas

Richard Rust

as Jim Nesbitt

James Westerfield

as Alfred S. Adrims

Gilbert Green

as Lt. Miller

Joan Marshall

as Emily

Hope Summers

as Martha Adrims (Uncredited)

Harry 'Snub' Pollard

as Eddie, Bellhop (Uncredited)

Wolfe Barzell

as Olie (Uncredited)

Teri Foster Brooks

as Mrs. Forest (Uncredited)

William Castle

as Self, Prologue Host (Uncredited)

Ralph Moody

as First Hotel Clerk (Uncredited)

Joseph Forte

as Second Hotel Clerk (Uncredited)