Director: Steve Barkett
Cinematography: Thomas F. Denove/Dennis Skotak
Production Design: Robert Skotak
Special Visual Effects: Robert and Dennis Skotak
Matte painting: Robert Skotak
Aditional space effects: Jim Danforth
Model builder:Susan turner /Pat MacClung
Skotak´s brothers during the filming of a matte shot.
Jim Danforth was credited as additional space effects. Not sure what he made but I guess he was responsible for the planet Earth paintings.
What I´m sure about is that he painted the Film poster.