Roger C. Carmel

Sultan / Emir of Somnambula (voice)

Cyclonus / Quintesson Leader (voice)

Sir Tuxford / Town Crier / Charm Teacher

Sir Tuxford (voice)

Charm Teacher (voice)

Sir Tuxford / Town Crier (voice)

Abdul Ben-F'aisal (voice)

Ancient Autobot (voice)

El Presidente (voice)

Menasor (voice)

Lawrence Brody

Robert Trent

Walter Brent

Harry Jackson

Ralph Junior Hunnicutt

Merl Denker

Private Investigator Belasco

Bob Henderson

Harcourt Fenton Mudd (voice) (uncredited)

Oliver Garson

Analyst

Mr. Ligway

Dr. Randolph Spencer Montag

Otto Kreps

McClure

Misha the Bear

Paz

Roger Buell

Gen. Jose Casados

Mike Ballard

Ram

Capt. Angus Ferguson

Harcourt Fenton Mudd

Andreyev

Colonel Gumm

General Karl Schmidt

Zorgus

Inspector

Laszlo Brastoff

Captain Cervantes

Admiral Halder

Dixie Keeler

Hotel Clerk (uncredited)

Kirov

Farnum Mullett

Mr. Cochran, Director (uncredited)

Man in the Shower

Otis Tiffin

Tall Man in Crowd (uncredited)

Harry Staples

Fitch

Al Buxley

Lowell F. Newton

Alfred Gurdine

Qwist

Stagehand (uncredited)

McClure