Ralph Bellamy

as McCreary

Fay Wray

as Diana

Frederick Vogeding

as Von Boulton - Schlemmer

Esther Howard

as Lily

Paul Page

as Jackson

Trevor Bland

as Waldridge

William J. Kelly

as Dr. Chapman

Richard Alexander

as Sailor

Kenneth MacDonald

as Sailor (uncredited)

Paul McVey

as Shipboard Party Guest