Herbert Marshall

as Self

as Self (archive footage)

as Self (archive footage)

as (archive footage)

as Austin Parsons

as Dr. Jubal Harrington

as Sir Wilfrid Lucas

as The Prime Minister

as Gov. Oliver P. Thornwall

as Charles Manning

as Henry Addison

as Sir John Dalman(1 ep)

as Dr. Morgan(1 ep)

as Judge(1 ep)

as Father Anthony(1 ep)

as Insp. Charas

as Robert Harley Hedges

as Dr. Knight

as Simon Baker(1 ep)

as Insp. Mackenzie

as Stephen Collins

as Judge Connors(1 ep)

as Colin Bragner(1 ep)

as Lord Leicester

as Self(1 ep)

as William, Earl of Mackworth

as Dr. Van Ness

as Dr. Donald L. Stanton / Narrator

as Bo Barrett(1 ep)

as Mr. Charles Tremayne

as Self -Host(39 eps)

as Dr Jameson

as Dr. James Curtis

as Enoch Gavin(1 ep)

as Dr. Jaquith(1 ep)

as Andrew Crocker-Harris(1 ep)

as E.J. Stanton

as Self(1 ep)

as Inspector Goole(1 ep)

as Archibald Craven

as Colonel Beaumont(1 ep)

as Willard I. Whitcombe

as Miles Rushworth

as Scott Chavez

as W. Somerset Maugham

as Traybin

as Dr. Charles Evans

as Major John Hillgrove

as Dr. Standish

as Self

as Prof. Michael Kingsley

as Paul Turner

as Curate in Air Raid Shelter

as Geoffrey Wolfe

as John Davis

as Horace Giddens

as Rogers Woodruff

as Sen. John Coleridge

as Robert Crosbie

as Stephen Fisher

as Gray Meredith

as Dufresne

as Jim Howard

as Stephen Holland

as Richard Todd

as Sir Frederick Barker

as Jonathan Blair

as Christopher 'Chris' Drew

as Thomas Lane

as Dr. Stephen Dominik

as Harry

as Alan Barclay

as Dr. Michael J. Talbot

as Jim Buchanan

as Gerald Shannon

as Steven Gaye

as Dr. Gordon Phillips

as Doctor Sporum

as Walter Fane

as Napier

as Lord Philip Rexford

as Arnold Ainger

as Oliver Lane

as Stephan

as Count Franz von Degenthal

as Gaston

as Edward 'Ned' Faraday

as Waverly Ango

as Michael Rowe

as Gerry Anson

as Lord Danforth

as (archive footage)

as Sir John Menier

as Geoffrey Hammond

as Col. Armytage