The Ringer

Patric Curwen

Dr. Lomond

Esmond Knight

John Lenley

John Longden

Inspector Wembury

Carol Goodner

Cora Ann Milton

Gordon Harker

Samuel Hackett

Franklin Dyall

Maurice Meister

Dorothy Bartlam

Mary Lenley

Henry Hallatt

Inspector Bliss

Arthur Stratton

Sgt. Carter

Kathleen Joyce

Gwenda Milton

Eric Stanley

Commissioner

Edgar Wallace

Novel

Michael Balcon

Producer

Robert Stevenson

Writer

Harold V. King

Sound

Sidney Gilliat

Additional Dialogue

Angus MacPhail

Writer

Walter Forde

Director

Ian Dalrymple

Editor

Alex Bryce

Director of Photography

Bryan Edgar Wallace

Production Manager

Leslie Rowson

Director of Photography

Norman G. Arnold

Set Designer

Rosaire Rutland

Continuity