Herbert Marshall

as Insp. Charas

as Stephen Fisher

as Gaston

as Judge Connors

as Robert Crosbie

as Scott Chavez

as Horace Giddens

as Mr. Charles Tremayne

as Sir John Menier

as Edward 'Ned' Faraday

as Charles Manning

as W. Somerset Maugham

as Sir Wilfrid Lucas

as Sir Frederick Barker

as Dr Jameson

as Walter Fane

as The Prime Minister

as Doctor Sporum

as Traybin

as Archibald Craven

as William, Earl of Mackworth

as Lord Leicester

as Major John Hillgrove

as Dr. Van Ness

as Willard I. Whitcombe

as E.J. Stanton

as Self

as Miles Rushworth

as Father Anthony

as Dr. Charles Evans

as Geoffrey Hammond

as Jonathan Blair

as Jim Buchanan

as Insp. Mackenzie

as Gerald Shannon

as Arnold Ainger

as Geoffrey Wolfe

as Thomas Lane

as Dr. Donald L. Stanton / Narrator

as Robert Harley Hedges

as Stephen Collins

as Curate in Air Raid Shelter

as Dr. Jubal Harrington

as Colonel Beaumont

as Self (archive footage)

as Richard Todd

as Rogers Woodruff

as Dr. Standish

as Simon Baker

as Austin Parsons

as Paul Turner

as Jim Howard

as Inspector Goole

as Oliver Lane

as Dr. Gordon Phillips

as Enoch Gavin

as Dr. Morgan

as Bo Barrett

as Gray Meredith

as Christopher 'Chris' Drew

as Dr. Stephen Dominik

as Lord Philip Rexford

as Dufresne

as Gov. Oliver P. Thornwall

as (archive footage)

as Prof. Michael Kingsley

as Stephan

as Alan Barclay

as Dr. Michael J. Talbot

as Dr. James Curtis

as Napier

as Sen. John Coleridge

as Stephen Holland

as John Davis

as Henry Addison

as Lord Danforth

as Count Franz von Degenthal

as Steven Gaye

as Waverly Ango

as Self

as (archive footage)

as Harry

as Col. Armytage

as Gerry Anson

as Michael Rowe

as Self (archive footage)

as Self

as Sir John Dalman

as Self -Host