Charles Aidman

as Speaker at Banquet

as Narrator (voice)

as Randalph Loehrman

as Sen. Hastings

as Earl of Gloucester

as Dr. Ashcroft

as Mark Twain

as George Shearer

as James Randolph

as Fred

as Warden Johnson

as Warden Johnson

as Dr. Shaw

as Narrator (voice)

as Dr. Michaels

as The Wild Man

as Detective Malcolm Toliver

as Narrator (voice) (uncredited)

as Davis Mendelsohn

as Bernstein

as Mr. Earhardt

as Preston Claymore

as Dr. Mason Colella

as Kenneth Watson

as Avery Manning

as Howard Lemner

as Dr. Nick Maggio

as Police Captain Leo Winwood

as Noah Deitweiler

as John Skow

as Sam Dobkins

as Dr. Peter Bernard

as Bertram Lomax

as Tom DeHaven

as Arnold Fleming

as Basil Hallward

as Mr. Stevenson

as Ben Antrim

as Dr. Cooper

as Dr. Robert Jason

as Russell Kincaid

as Colonel Victor Bloodworth

as Jack Cameron

as Harry Teal

as Gerald Kotcher

as Dr. Paul Danvers

as Mr. Willis

as Mr. Hopper

as Jed McIver

as Carl Buchanan

as Benby

as Pete Howell

as Ross Eckhart

as Dr. Ken Blair

as Willy Steele

as Jerry Thompson

as George Williamson

as Dr. Royce

as Garth Dryden

as Maj. Kitchener - The Law Officer

as Horace Sullivan

as Alex Stevens

as Ken Mitchell

as Paddy O'Bannion

as Gus

as Glass

as Bryce

as Prof. Julian Reed

as General Envir Qaisette

as Raymond Pike

as Eric Delbey

as Jeremy Pike

as Christopher

as Hal Andre

as Captain Reiner

as Captain Archer

as Dr. Hollis

as Maj. Kitchener

as Jim Barton

as Captain James Eckhardt

as Tome Janeway

as Sam Hicks

as William Webb

as Capt. Wallace Pratt

as Ed Rubin

as Dr. Ted Reisman

as James Grady

as Eddie Folsom

as Mike Ballantine

as Dr. Fred Burton

as Frank Smith

as George Mikos

as Jerry Welch

as Ben Wiley

as Art Cable

as Noel Ross

as Stan Willets

as Ben White

as Ferguson

as Bill

as Ed Harrington

as Jeffrey Blake

as Frank Paxton

as Jim Applegate

as Joe Drake

as Lt. Harold

as Carl Archer

as Norman Bromley

as Ab Murdock

as Luke Morley

as Bert Pearson

as Waltzer

as Dave

as Ralph M. Meadows

as Jake Pringle

as Marty Davis

as Chuck Eggleston

as Len Starbuck

as Johnny Hansel

as Arthur Siddons

as Amos Gibbon

as Col. Buckner

as Whit Martin

as Gordon Dawes

as Tom Barton

as Lt. Graham

as Fred Harper /Martin Kilmer

as Joe Vale

as George Belden

as Jail Medical Attendant (uncredited)

as Watson Cooke

as Tommy Brandywine

as Verd

as Vince

as Dack

as Ray Jarvis

as Riley Sharp

as Eddie Daggett

as Carl Buchanan

as Jed McIver

as Mark Twain

as Joey Willard

as Shammah

as Lew

as Doctor

as Carl