as Doc (voice) (uncredited)
as Dick Saunders
as Arthur Sidney
as Salesman
as Arthur Tirrey - Casting Director
as Professor Washburn
as Bearded Man on Ship (uncredited)
as Doc (voice) (archive footage)
as Mr. Pippensigal
as Professor Kockerthaler
as Vale
as Jim Conwell
as Senator Sam H. Smiley
as Jerry Sidon
as Harkness Boyd
as Winston Gates
