as King Peter

as Vice Adm. Payne

as Professor Bernard Quatermass

as Hugh Fitzooth

as Inspector Eliot

as Colonel Wilkes

as the editor

as Austin Ruthyn

as Trevor Mangin

as Dr Charles Ackroyd

as Ricardi

as Commanding Officer, Initial Training Wing

as The Training Company Commanding Officer

as van Zijl

as Maj. Richards

as Ackroyd

as Rev. John Rider

as Chester

as Mate of Q-Boat

as Allan Hayden

as Tom Evans

as Hubert Perrin

as Allan Norton

as Ellaby