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 in the third installment of the 1980s Superman franchise. Between rekindling romance with his high school sweetheart and saving himself, Superman must contend with a powerful supercomputer.
Christopher Reeve
as Clark Kent / Superman
Richard Pryor
as August 'Gus' Gorman
Jackie Cooper
as Perry White
Marc McClure
as Jimmy Olsen
Annette O'Toole
as Lana Lang
Annie Ross
as Vera
Pamela Stephenson
as Lorelei
Robert Vaughn
as Ross Webster
Margot Kidder
as Lois Lane
Gavan O'Herlihy
as Brad
Nancy Roberts
as Unemployment Clerk
Graham Stark
as Blind Man
