Cary Grant

Walter Christopher Eckland

Leslie Caron

Catherine Freneau

Trevor Howard

Commander Frank Houghton

Jack Good

Lieutenant Stebbings

Pip Sparke

Anne

Verina Greenlaw

Christine

Stephanie Berrington

Elizabeth Anderson

Laurelle Felsette

Angelique

Alex Finlayson

Doctor Bigrave

Peter Forster

Chaplain

Simon Scott

Captain of Submarine, USS Sailfin

Ken Swofford

Helmsman, Submarine USS Sailfin

Richard Lupino

Radioman