James Bradford

as General Steven Fred Easterland

as French Environment Scientist

as Smithsonian President

as Grandfather

as Ed Bronzeman, as André Houle

as Butler Jameson

as Mr. Trinkle

as Ephor #5

as Monsieur Fynlanson (1 episode)

as Howard

as Doctor

as Robert Watson

as Uncle Willy

as Judge Carrington

as Judge

as Hjalmar Schacht (1 episode)

as Dr. Goulding

as Sir James Colborne

as Stagehand (Montréal)

as Sir Reginald Welland

as Lord Thomas

as Captain

as Roy Cahoon

as Silas Blake

as Abbe Seraphon (1 episode)