Ralph Bellamy as McCreary

Fay Wray as Diana

Frederick Vogeding as Von Boulton, a.k.a. Schlemmer

Esther Howard as Lily

Paul Page as Jackson

Trevor Bland as Waldridge

William J. Kelly as Dr. Chapman

Richard Alexander as Sailor (uncredited)

Kenneth MacDonald as Sailor (uncredited)

Paul McVey as Shipboard Party Guest (uncredited)

Florence Wix as Banquet Guest (uncredited)