James Mason as Johnny McQueen

Robert Newton as Lukey

Cyril Cusack as Pat

F.J. McCormick as Shell

Kathleen Ryan as Kathleen Sullivan

William Hartnell as Fencie - the barman

Fay Compton as Rosie

W.G. Fay as Father Tom

Denis O'Dea as Inspector

Maureen Delaney as Theresa O'Brien

Elwyn Brook-Jones as Tober

Robert Beatty as Dennis

Dan O'Herlihy as Nolan

Kitty Kirwan as Grannie

Beryl Measor as Maudie

Roy Irving as Murphy

Joseph Tomelty as 'Gin' Jimmy, the cabbie

Arthur Hambling as Tom

Ann Clery as Maureen

Maura Milligan as Cashier

Maureen Cusack as Molly

Eddie Byrne as Policeman in final scene

Wilfrid Brambell as Standing Passenger on Tram (uncredited)

Dora Bryan as Girl in Telephone Kiosk (uncredited)

Steve Donahue as Policeman (uncredited)

Harry Hutchinson as Waiter in Crown Bar (uncredited)

Geoffrey Keen as Soldier (uncredited)

Pat McGrath as Lennie (uncredited)

Maurice Millard as Policeman (uncredited)

Noel Purcell as Tram Conductor (uncredited)

Guy Rolfe as Policeman Watching Kathleen's House (uncredited)

Albert Sharpe as Bus Conductor (uncredited)

Robert Brooks Turner as Mill Office Worker During Robbery (uncredited)

Valentine Vousden as Man on Bus Shouting at Conductor (uncredited)