Director
Russ Mayberry
DIRECTOR
Stars (in credits order)
Dennis Dugan
Tom Trimble
Jim Dale
Sir Mordred
Ron Moody
Merlin
Kenneth More
King Arthur
John Le Mesurier
Sir Gawain
Rodney Bewes
Clarence
Sheila White
Alisande
Robert Beatty
Senator Milburn
Cyril Shaps
Dr. Zimmerman
Kevin Brennan
Winston
Ewen Solon
Watkins
Pat Roach
Oaf
Reg Lye
Prisoner
Bruce Boa
Air Force Officeruncredited
Al Lampert
NASA Technicianuncredited
Derek Suthern
NASA VIPuncredited