character - Prof. Warren

character - Secretary of the Navy

character - Rudolph Dimrose

character - Tersh Jeterax

character - Mr. Stillwell

character - Dr. Witherton

character - Dr. Henry L. Carlyle

character - Lycon

character - Adrian Benedict

character - Bill Mowry

character - Douglas Kilburn

character - Dr. Wells

character - Self - Narrator (voice)

character - Peter Selden

character - Stanley Sidney

character - James McCullough / Ralph Graham

character - Reagan

character - Major General Vanderlip

character - Dr. Morris

character - Dr. Bernard Fischer

character - Dillon Brent

character - David

character - Reagan

character - Jonathan Wilson

character - Dr. Malcolm Couzzens

character - Sherman Wadsworth

character - Self - Nominee

character - Doc

character - Dr. Giffin

character - Bert

character - Father

character - Dr. Brooks

character - Charles Francis Adams

character - Lycon

character - Elliott Simpson

character - Anthony Vickers

character - Milo Bragg

character - Timothy Bryant

character - Arthur Evans

character - Jameson

character - Ted Darby

character - Adam Stanton

character - Blacky Franchot

character - Napoleon Bonaparte (uncredited) (voice)

character - Mr. Fred Tiflin

character - Marchese Del Laudi

character - Father Massieu, Joan's Bailiff

character - Brig. Gen. Mel Gilbert

character - Mac Taylor

character - Senator Greet

character - Cassius

character - Hal Manning

character - Nordlund

character - Benedict Arnold

character - Lincoln Venner

character - Mr. Wallace Sanford

character - Earl Huber aka Mathews

character - Lt. Aleksa Petrovic, Mihailovitch's Aide

character - Dr. Larry Forbes

character - Edgar Allan Poe

character - Henry Clay

character - Tod Fenwick

character - Dewey Roberts

character - Bob Mallory

character - Roger Chevis

character - Ed Shirley

character - Dr. Morton

character - Lieut. Jerry Banning

character - Dr. Joseph Goldberger

character - Narrator / Tom Thumb's Father (voice) (uncredited)

character - Dr. Gregory 'Greg' Lane

character - Dr. John 'Jock' McWade

character - Ned Morgan

character - Joaquin Murrieta

character - Dr. Semmelweis