Sultan / Emir of Somnambula (voice) (1 episode)
Sir Tuxford / Town Crier / Charm Teacher
Sir Tuxford (voice) (3 episodes)
Charm Teacher (voice) (1 episode)
Sir Tuxford / Town Crier (voice) (1 episode)
Cyclonus / Quintesson Leader (voice)
El Presidente (voice) (1 episode)
Abdul Ben-F'aisal (voice) (1 episode)
Ancient Autobot (voice) (1 episode)
Menasor (voice) (1 episode)
Lawrence Brody
Walter Brent (1 episode)
Robert Trent
Merl Denker (1 episode)
Harry Jackson
Ralph Junior Hunnicutt
Mr. Ligway (1 episode)
Private Investigator Belasco (1 episode)
Bob Henderson
Harcourt Fenton Mudd (voice) (uncredited) (1 episode)
Oliver Garson (1 episode)
Analyst
Gen. Jose Casados (2 episodes)
Misha the Bear (3 episodes)
Dr. Randolph Spencer Montag
Otto Kreps
McClure
Roger Buell (30 episodes)
Colonel Gumm (2 episodes)
Mike Ballard
Harcourt Fenton Mudd (2 episodes)
Capt. Angus Ferguson
Andreyev
Admiral Halder (1 episode)
General Karl Schmidt (1 episode)
Captain Cervantes (1 episode)
Zorgus
Laszlo Brastoff (1 episode)
Farnum Mullett (1 episode)
Inspector
Dixie Keeler
Hotel Clerk (uncredited)
Mr. Cochran, Director (uncredited) (1 episode)
Man in the Shower (1 episode)
Otis Tiffin (2 episodes)
Harry Staples (1 episode)
Fitch (1 episode)
Al Buxley (1 episode)
Lowell F. Newton (1 episode)
Qwist (1 episode)
Alfred Gurdine (1 episode)
Tall Man in Crowd (uncredited)
Stagehand (uncredited)