Mel Brooks
President Skroob/Yoghurt
Daphne Zuniga
Princess Vespa
John Candy
Barfolemew 'Barf'
George Wyner
Colonel Sandurz
Joan Rivers
Dot Matrix (voice)
Dick Van Patten
King Roland
Michael Winslow
Radar Technician
Lorene Yarnell Jansson
Dot Matrix
Stephen Tobolowsky
Captain of the Guard
Sandy Helberg
Dr. Schlotkin
Dom DeLuise
Pizza the Hutt (voice)
Rick Ducommun
Prison Guard
Rudy De Luca
Vinnie the Robot
Jim Jackman
Major Asshole
Sal Viscuso
Radio Operator
