John Mills

as Lt. Taylor RN

Eric Portman

as L/S Hobson

Louis Bradfield

as First Officer - Lt. Brace, R.N.R.

Ronald Millar

as Third Officer - Lt. Johnson, RNVR

Jack Watling

as Navigating Officer - Lt. Gordon, R.N.

Reginald Purdell

as Coxwain - C / P.O. Dabbs

Caven Watson

as Chief Engine Room Artificer - C / P.O. Duncan

Niall MacGinnis

as Torpedo Gunner's Mate - C / P.O. Mike Corrigan