Walter Pidgeon

Maj. Hugh 'Bulldog' Drummond

Margaret Leighton

Sgt. Helen Smith

Robert Beatty

Arthur Gunns

David Tomlinson

Algernon 'Algy' Longworth

Peggy Evans

Molly

Charles Victor

Insp. McIver

Bernard Lee

Col. Webson

James Hayter

Bill

Patric Doonan

Alec

John Adams

Police Constable in Gunns' Car

Michael Allan

Bert

Frank Andrews

Harry - Policeman in Park

Jim Brady

Customer in Last Word Club

Richard Caldicot

Judge

Gerald Case

Police Officer in Patrol Car

Ivan Craig

Air traffic controller

Anthony Forwood

Pilot

John Gabriel

Heckler in crowd