MGM FX Department:

Special Photographic Effects : A. Arnold Gillespie /  Irving G. Ries
Special  animation effects: Joshua Meador
Matte paintings supervisor: Warren Newcombe
Animation effects:  Bob Abrams
Robot builder: Robert Kinoshita
Special effects technician Glen Robinson / Franklyn Soldo/ Doug Hubbard
Effects illustrator: Joe Alves
Matte painting:  Howard Fisher / Henri Hillinck
Matte painting assistant: Mat Yuricich