John Mills

Character: Terence Sullivan

Dirk Bogarde

Character: Matt Sullivan

Robert Beatty

Character: Shinto

Elizabeth Sellars

Character: Maureen Fagan

Barbara Mullen

Character: Molly Fagan

Eddie Byrne

Character: Flynn

Joseph Tomelty

Character: Dr Brannigan

Gilbert Harding

Character: Henry Truethome

James Kenney

Character: Johnny Fagan

Liam Redmond

Character: Connolly

Jack MacGowran

Character: Patsy McGuire

Michael Golden

Character: Murphy

Neil Wilson

Character: Police Constable at Tube Station (uncredited)

Stephen Dunne

Character: Brennan (uncredited)

Patric Doonan

Character: Sentry (uncredited)

John Orchard

Character: Sentry (uncredited)

Terence Alexander

Character: Ship's Officer (uncredited)

Harry Brogan

Character: Barney (uncredited)

Harry Hutchinson

Character: Bill - Detective (uncredited)

Doris Yorke

Character: English Landlady (uncredited)

Patricia Stewart

Character: Girl at Docks (uncredited)

Johnnie Schofield

Character: ARP Warden (uncredited)

Jean St. Clair

Character: Rosie O'Flaherty (uncredited)

Seamus Kavanagh

Character: Publican (uncredited)

Jack Rodney

Character: IRA Driver (uncredited)

Edward Byrne

Character: Ambulance Attendant (uncredited)

Tony Quinn

Character: Ambulance Attendant (uncredited)

E.J. Kennedy

Character: Telephone Exchange Official (uncredited)

John Warwick

Character: Prisoner's Escort on Ship (uncredited)