Melvyn Douglas

as Self (archive footage)

as (archive footage)

as Self (archive footage)

as Max Reich

as David(1 ep)

as John Jaffrey

as David

as Senator Carmichael

as Benjamin Rand

as Senator Birney

as Donald's Father

as Grandpa Doc

as Grandpa Doc(1 ep)

as Zachariah Guthrie

as Old Clement Sturgess

as Monsieur Zy

as (archive footage)

as Stateman Benjamin Franklin(4 eps)

as Dr. Paul Harelson

as Police Captain Earl Kreski

as Grandfather

as Grandpa(1 ep)

as John J. McKay

as Joseph Provo

as Self (archive footage)

as Judge Earl Chapman

as Tom Garrison

as Keller Floran

as Self (archive footage)

as Dr. Lawrence Strelson

as Self - Guest(1 ep)

as Peter Schermann

as Deputy Governor Danforth

as Warren Trent

as Peter Schermann(1 ep)

as Henry Drummond

as Martin

as Frederick Larbaud

as Admiral William Jessup

as Leon (archive footage)

as Col. Claude Brackenbury

as Pat Konke(1 ep)

as Dr. Mark Ryder(1 ep)

as Homer Bannon

as The Dansker, Sailmaker

as Burton Strang(1 ep)

as Gen. Parker

as Self - Host

as Stalin

as Howard Hoagland

as Gen. Parker(1 ep)

as Self(1 ep)

as self(3 eps)

as Professor Arthur Barris(1 ep)

as Steve Randall(13 eps)

as Henry Drummond(1 ep)

as Galileo Galilei(1 ep)

as Frank Bradley

as Paul Beaurevel

as James Strickland(1 ep)

as Self - Guest Host(1 ep)

as Self - Guest Performer(1 ep)

as Self(2 eps)

as Armand De Glasse

as Luke Jordan

as Cyril Ritchard(1 ep)

as Richard Gordon(1 ep)

as The Stranger(1 ep)

as Clive Heath

as Self(1 ep)

as Bill Cole

as Brice Chamberlain

as Smithfield 'Smitty' Cobb

as Jeff Seabrook

as Michael 'Mike' Holmes

as Nicholas Prax

as Lawrence 'Larry' Blake

as Jerome 'Jerry' Marvin

as Dr. Gustaf Segert

as Larry Baker

as Tice Collins

as Jeff Thompson

as Paul Boliet

as Self

as Henry Lowndes

as Kenny Williams

as Count Leon d'Algout

as Self

as Ronald Brooke

as Michael Cassidy

as Self

as Melvyn Douglas

as William 'Bill' Reardon

as Henry Linden

as Vincent Bullitt

as Joel Sloane

as George Sartoris

as William H. Reardon

as Rene Farrand aka Arsene Lupin

as James Guthrie

as Anthony 'Tony' Halton

as Frank Burton Cheyne

as George Potter

as Richard Stark

as Michael Grant

as John Randolph

as Stephen Blake

as Michael Lanyard

as Jeff Hogarth

as Barton Powell

as Richard Barclay

as George R. 'Traps' Stuart

as Charles Stanton

as Tony Robson

as Roy Darwin

as Dr. Walter Tradnor

as Karl Brettschneider

as Penderel

as Count Bruno Varelli

as Philip 'Phil' Marvin

as David Rolfe

as Capt. Andre Verlaine

as Jim Fletcher