Jack Hawkins as Hyde

Nigel Patrick as Race

Roger Livesey as Mycroft

Richard Attenborough as Lexy

Bryan Forbes as Porthill

Kieron Moore as Stevens

Terence Alexander as Rupert

Norman Bird as Weaver

Robert Coote as Bunny Warren

Melissa Stribling as Peggy

Nanette Newman as Elizabeth

Lydia Sherwood as Hilda

Doris Hare as Molly Weaver

David Lodge as C.S.M.

Patrick Wymark as Wylie

Gerald Harper as Captain Saunders

Brian Murray as Grogan

Oliver Reed as Chorus Boy (uncredited)

Roger Hammond as Chorus Boy (uncredited)

Claire Gordon as Porthill's Blonde (uncredited)

Terence Plummer as Soldier (uncredited)

Susanne Gibbs as Small Girl (uncredited)

Marie Burke as Mrs Boyle (uncredited)

Nigel Green as Kissing Man in Truck (Uncredited)

Dinsdale Landen as Young Man in Gym (uncredited)

Cyril Chamberlain as AA Patrolman (uncredited)

Norman Rossington as Staff Sergeant Hall (uncredited)

Beverly Bennett as Young Girl (uncredited)

Terence Edmond as Young PC (uncredited)

Ernest Fennemore as Soldier (uncredited)

Joe Dunne as Soldier (uncredited)

Patrick Jordan as Sergeant (uncredited)

Ronald Leigh-Hunt as Police Superintendent (uncredited)

Gerry Judge as Waiter (uncredited)

Tony Thawnton as Head Waiter (uncredited)

Bruce Seton as Patrolman (uncredited)

John Richardson as Elizabeth's Lover (uncredited)

Ned Lynch as Bank Official (uncredited)

Fred Machon as Bank Official (uncredited)

Cecil Paul as Bank Official (uncredited)

Joe Wadham as Security Van Driver (uncredited)

Pat Ryan as Constable (uncredited)

Tony Wager as Army Switchboard Operator (uncredited)

Norman Morris as Cafe Royal Manager (uncredited)

Mike Conner as Policeman (uncredited)

Pearl Walters as Lady on Street (uncredited)