Hennessy

Rod Steiger

Niall Hennessy

Lee Remick

Kate Brooke

Richard Johnson

Insp. Hollis

Trevor Howard

Comdr. Rice

Peter Egan

Williams

Eric Porter

Tobin

Ian Hogg

Gerry

Stanley Lebor

Hawk

John Hallam

Boyle

Patrick Stewart

Tilney

Don Sharp

Director

Samuel Z. Arkoff

Executive Producer

Peter Snell

Producer