Richard Lupino

as Radioman

as Otto Krafft

as British Officer of the Watch

as Singing Elevator Boy (uncredited)

as Lieutenant Controller

as Simon Foster

as Sentry

as Mike Island

as William Brown

as Perc Kettering

as Chester Forsyte

as Jimmy

as Simon ('The Extra Passenger')

as Guerny, Jr.

as The Author

as Doug Whitfield

as Press Photographer

as Ives

as Willie Carr

as John Marshall

as Lt. Brown