Joseph Cotten

as Jedediah Leland

as Holly Martins

as Coroner (uncredited)

as William R. Simonson

as Charlie Oakley

as Henry L. Stimson

as Brian Cameron

as Eugene Morgan

as George Loomis

as The Reverend Doctor

as Self

as Dr. Vesalius

as Nicholas St. Downs III

as Drew Bayliss

as William Callew

as Senator (uncredited)

as Sam Flusky

as Jesse McCanles

as Colonel Van Ryker

as George

as Baron Otto von Kleist / Alfred Becker

as Self (archive footage)

as Warner Jameson

as Thomas Cummings

as Eben Adams

as Howard Graham

as John R. James

as John Breckenridge

as Self

as Arthur Renfrew - Secretary of State

as Prof. Ernest Marvin

as Baron Frankenstein

as Dr. Benjamin Stern

as Colonel Jonas

as Detective Sam Wagner

as Walter Prichard

as Tony Willett

as Lionel

as Doctor Louis Moline

as Mr. Danner

as Zachary Morgan

as Priest

as Whitney 'Cam' Cameron

as Glenn Morley

as Self (uncredited)

as Judge Will McMasters

as Paternò

as Victor Barbicane

as Clay Tucker

as Weldon Rathbone

as Captain Dan Brady

as Capt. Craig McKenzie / Cmdr. Glenn McKenzie

as Augustus Billings (uncredited)

as Self

as Chris Hale/Steve

as Allen Quinton

as Arnold Buhler

as Col. Heinrich

as Jim Osborne

as David Lawrence

as Milland

as Sheriff Logan

as Dr. Horace Van Tilden

as Dupin

as George Tresvant

as Crandall

as Charles Ladovan

as Richard Gable

as Dr. Ziegler

as Ivar Langrock

as Kenneth Regan

as Judge Weatherby

as Harry

as Richard Morgan

as The Professor

as Nathan Tio

as Michael Fitzpatrick

as Henry 'Harry' Worthington Rayner

as Hawthorne

as Major Marcus A. Reno

as Daniel Halliday

as Sir Arthur Dundee

as Dr. Joseph Francis Condon

as Narrator

as Ben Harper

as Self - Host

as Self (archive footage)

as Gregg Carey

as Temple Cordeen

as Bill Morley

as Dr. George Mallinson

as Ace

as Kirk Denbow

as Self

as Self - Guest Host

as Pat 'P.M.' Martin

as John Raymond Jr.

as Destil

as Foster Johnson

as Paul Henty

as Black McSween

as Self (uncredited)

as Antigonus

as Mac McClay

as Self

as Simon Grant

as Colonel Woodward

as Dick Burlingame

as John Ashburn

as Jeff Wheeler

as Self (archive footage)

as Ed Booker

as Admiral

as Jim

as General Spalding

as Self - Ace of Diamonds (archive footage) (uncredited)

as Self

as Self

as Michael Bachlin

as Dr. Robert Carson

as Horton Paine

as Narrator

as John Adams

as Greedy sawmill mogul

as Jeff Wheeler

as Captain Jason

as Gen. George C. Marshall

as Martin Bannister

as Dr. Ben Stern

as Captain Meehan

as Professor Wheelwright

as The Envoy

as Robert Rainey

as Self

as Self

as Self - Host - Narrator