Raymond Massey

John Cabal / Oswald Cabal

Edward Chapman

Pippa Passworthy / Raymond Passworthy

Ralph Richardson

The Boss

Margaretta Scott

Roxana / Rowena

Cedric Hardwicke

Theotocopulos

Maurice Braddell

Dr. Harding

Sophie Stewart

Mrs. Cabal

Derrick De Marney

Richard Gordon

Ann Todd

Mary Gordon

Pearl Argyle

Catherine Cabal

Kenneth Villiers

Maurice Passworthy

Ivan Brandt

Morden Mitani

Anne McLaren

The Child

Patricia Hilliard

Janet Gordon

Charles Carson

Great Grandfather

Patrick Barr

World Transport Official (uncredited)

Noel Brophy

Irishman (uncredited)

John Clements

The Airman (uncredited)

Anthony Holles

Simon Burton (uncredited)

Allan Jeayes

Mr. Cabal (uncredited)

Pickles Livingston

Horrie Passworthy (uncredited)

George Sanders

Celestial Body (uncredited)

Abraham Sofaer

The Jew (uncredited)

Terry-Thomas

Man of the Future (uncredited)

Charles Crichton

Editor

René Hubert

Costume Design

Cathleen Mann

Costume Design

William Cameron Menzies

Director

Alexander Korda

Producer

Arthur Bliss

Original Music Composer

Francis D. Lyon

Editor

Vincent Korda

Art Direction

H.G. Wells

Screenplay

Sam Williams

Costume Design

H.G. Wells

Novel

Georges Périnal

Director of Photography

John Armstrong

Costume Design

Muir Mathieson

Music Director

A.W. Watkins

Recording Supervision

Ned Mann

Special Effects

Frank Wells

Assistant Art Director

Robert Krasker

Camera Operator

Nigel Tangye

Technical Advisor

William Hornbeck

Supervising Editor

Edward Cohen

Special Effects

Lawrence W. Butler

Special Effects Assistant

David B. Cunynghame

Production Manager

Geoffrey Boothby

Assistant Director