Stanley Baker as Detective Sergeant Jack Truman

Anne Heywood as Cathie Murphy

David McCallum as Johnnie Murphy

Peter Cushing as Father Laidlaw

John Slater as Sgt. Walker

Clifford Evans as Headmaster Evans

Moultrie Kelsall as Superintendent

George A. Cooper as Chief Inspector

Brona Boland as Mary Murphy

Fergal Boland as Patrick Murphy

Michael Chow as Alexander

Tsai Chin as Primrose

Sean Lynch as Slick

Bernice Swanson as Meg

Freddie Starr as Tommy

Sheila Raynor as Mrs. Catlin

Christopher Cooke as David Catlin

Irene Arnold as Mrs. Baker

Oonagh Quinn as Jilly Baker

Ali Allen as Boy (uncredited)

Grace Arnold as Customer in Grocer's Shop (uncredited)

John Boxer as Police Sergeant (uncredited)

Jeremy Bulloch as Pageboy at Hotel (uncredited)

John Bush as (uncredited)

Michael Collins as Police Officer in Patrol Car (uncredited)

Keith Crane as William (uncredited)

Gerrard Gibson as (uncredited)

Victoria Harrington as Child (uncredited)

Melvyn Hayes as Kid in Johnnie's Gang (uncredited)

Lindsay Hooper as Police Sergeant (uncredited)

Robert Howell as (uncredited)

Anthony John as Child (uncredited)

Stratford Johns as Police Constable (uncredited)

Billy Lawrence as (uncredited)

Phyllis Morris as (uncredited)

Robert Raglan as Doorman at Grand Hotel (uncredited)

Philip Ray as Stallholder (uncredited)

Anthony Richmond as (uncredited)

Lynne Roberts as Maureen Owen

Delene Scott as (uncredited)

Cyril Shaps as Hairdresser (uncredited)

Jack Sharp as Mechanic (uncredited)

Leonard Sharp as Spectator at Fire (uncredited)

Leslie Slysz as (uncredited)

James Sutherland as (uncredited)

Gareth Tandy as (uncredited)

John Tatham as Police Sergeant (uncredited)

Anne Tirard as (uncredited)

Dervis Ward as Constable (uncredited)

Kathleen Williams as (uncredited)

Lynn Williams as (uncredited)

John H. Watson as