Johnny Nobody

Nigel Patrick

Father Edward John Carey

Yvonne Mitchell

Miss Mary Floyd

William Bendix

James Ronald Mulcahy

Aldo Ray

Mark Wheeler (aka Johnny Nobody)

Cyril Cusack

Prosecuting Counsel O'Brien

Bernie Winters

Photographer

Niall MacGinnis

Defending Counsel Sullivan

Noel Purcell

Brother Timothy

Eddie Byrne

Landlord O'Connor

John Welsh

Judge

Joe Lynch

Tinker

Jimmy O'Dea

Postman Tim

Frank O'Donovan

Garda

T. P. McKenna

Garda

May Craig

Tinker's Mother

Norman Rodway

Father Healey

Michael Brennan

Supt. Lynch

J.G. Devlin

Caretaker

Christopher Casson

Father Bernard