Larry Gates

as Medusa Guard

as Dr. Dan 'Danny' Kauffman - (archive footage)

as President Alan Doby

as Adm. Leahy

as Pres. Herbert Hoover

as Judge Graham Platte

as Sir Oliver Surface

as Bernard Baruch

as Torger Nilsson

as Judge Herlands

as American Negotiator

as Arnie Bigelow

as Sir Oliver Surface

as Earl of Kent

as Ackerman

as Ed Hemmings

as Mayor Chester Sayre

as John P. Clum

as Eric Endicott

as Weller

as Jameson

as Roscoe Potts

as Roscoe Potts

as Dr. Lovane

as Tom Barrett

as Paul Nichols

as James Reed

as Austin Carr

as Edward Ticerman

as Owen Rutledge

as Cyrus Warkins

as President Chester A. Arthur

as Dr. Kramer

as Zales Yoder

as Prof. Robert Hopkins

as Joe Adams

as Senator George Dryden

as Randolph

as Louis Rosen

as John Driscoll

as Cardinal

as Harry Winters

as Doc Seltzer

as Henry Rogers

as Bishop

as Bill Stockton

as Jacob Darien

as Rev. Dr. Fielding

as Gavin Carroll

as Mason Woodruff

as Professor Robert Haven French

as Dr. Baugh

as General Toomey

as Mr. Pilbeam

as Sid Kubik

as Al Brooks

as Major Avery

as Dr. Dan 'Danny' Kauffman

as Mr. Hollister

as Ed Daggett

as Dan Austin

as Capt. William Parsons

as Charles Blaisdell

as Robert Ardley

as Mr. Pilbeam

as Henry Winthrop

as Clayman

as Hy

as George Savage

as Darcy