Superman III

Aiming to defeat the Man of Steel, wealthy executive Ross Webster hires bumbling but brilliant Gus Gorman to develop synthetic kryptonite, which yields some unexpected psychological effects. Between rekindling romance with his high school sweetheart and saving himself, Superman must contend with a powerful supercomputer.

• 
  Christopher Reeve

  Clark Kent / Superman
• 
  Richard Pryor

  August 'Gus' Gorman
• 
  Annette O'Toole

  Lana Lang
• 
  Robert Vaughn

  Ross Webster
• 
  Annie Ross

  Vera Webster
• 
  Pamela Stephenson

  Lorelei Ambrosia
• 
  Gavan O'Herlihy

  Brad Wilson
• 
  Jackie Cooper

  Perry White
• 
  Margot Kidder

  Lois Lane
• 
  Marc McClure

  Jimmy Olsen