as Paul Gordon
as Farmer (uncredited)
as Chief of Police (uncredited)
as Academy Awards Attendee (uncredited)
as Dr. Randolph
as Senator (uncredited)
as O'Hanlon, Pinkerton Agent (uncredited)
as Professor Graftner
as Professor Krantz
as Headwaiter (uncredited)
as Man Outside the Club (uncredited)
as Walt Beck
as Mr. Creely (uncredited)
as Member of the Tribe
as Dr. Pelham
as Ben Williams
as Naturalists' Conference Chairman
as Parole Board Member (uncredited)
as Dr. Graffner
as Sam Foster
as Dr. Matthias (uncredited)
as District Attorney (uncredited)
as U.S. Secretary Platt
as Mailman (uncredited)
as Mutate Council Leader
as Malcolm Smith [Ch. 10]
as Mr. Hillman
as Mr. Porter (uncredited)
as The Commissioner
as Lowell
as Doc Kemper
as Marshal Hunt
as Judge Murdock
as Sir Arthur
as First Explorer
