Robert Young

as Stanley Moorehead

as Doctor James Merrill

as Jeff Cohalan

as Philip Bosinney

as Harry King

as Finlay

as Larry Ballentine

as Oliver Bradford

as Cuffy Williams

as John Davis

as Harry Moulton Pulham

as Edward 'Eddie' Crane

as Richard Blake

as Fritz Marberg

as Langdon Towne

as Michael Morgan

as Charles 'Slim' Martin

as David Linden

as Gottfried Lenz

as Roger 'Rog' Ash

as Rudolph 'Rudi' Pal

as Tommy Randall

as Hugh McKenzie

as Robert Marvin

as Capt. Fitzroy

as John Stafford

as Lieut. (JG) 'Brick' Walters

as Claude William Hope

as Gordon Evans as a young man

as Ricardo

as Graham - Pilot Reporting Missing Airplanes (uncredited)

as Dr.Claudet

as Jimmy Bradshaw