Cast of Superman IV: The Quest for Peace

Christopher Reeve portrays Clark Kent / Superman, the iconic superhero with superhuman abilities and a dedication to protecting humanity.

Gene Hackman plays Lex Luthor, Superman's brilliant yet ruthless arch-nemesis with a knack for concocting nefarious schemes.

Jackie Cooper is Perry White, the gruff yet fair editor-in-chief of the Daily Planet, where Clark Kent and Lois Lane work.

Marc McClure portrays Jimmy Olsen, the intrepid and loyal photographer at the Daily Planet, often assisting Superman in his heroic deeds.

Jon Cryer plays Lenny, the mischievous and reckless nephew of Lex Luthor who causes trouble for Superman and others.

Sam Wanamaker is David Warfield, a media tycoon who aims to boost his empire's profits by supporting the creation of Nuclear Man.

Mark Pillow portrays Nuclear Man, a genetically engineered being created to counter Superman's power, leading to intense confrontations.

Mariel Hemingway plays Lacy Warfield, the compassionate and independent daughter of David Warfield who becomes entangled in the conflict.

Margot Kidder is Lois Lane, the fearless and determined journalist who shares a deep connection with both Clark Kent and Superman.

Damian McLawhorn portrays Jeremy, a young boy who looks up to Superman and plays a small but significant role in the story.

William Hootkins plays Harry Howler, a military officer involved in a critical moment related to the unfolding events.

Jim Broadbent portrays Jean Pierre Dubois, a French journalist who reports on the escalating conflict between Superman and Nuclear Man.