Suggestions by @maxhedroom

Colin Hanks

as Jack Quaid in Almost Cast: Superman

Fred Ward

as Rick Flagg Sr. in Superman (2000)

Jeffrey Combs

as Metamorpho in Superman (2000)

Rachel Leigh Cook

as Mystery Cameo Female in Superman (2000)

Lucy Liu

as The Engineer in Superman (2000)

Cedric the Entertainer

as Otis in Superman (2000)

James Marsden

as Superman in Superman (2000)

Topher Grace

as Jimmy Olsen in Superman (2000)

Jonny Lee Miller

as Lex Luthor in Superman (2000)

Bill Paxton

as Guy Gardner in Superman (2000)

Michael Rooker

as Guy Gardner in Superman (2000)

Charles S. Dutton

as Perry White in Superman (2000)

Spoiler

as Mystery Cameo Female in Superman (2000)

Spoiler

as Mystery Cameo Male in Superman (2000)

Jennifer Connelly

as Lois Lane in Superman (2000)

Jeremy Piven

as Steve Lombard in Superman (2000)

Eva Mendes

as Hawkgirl in Superman (2000)

Barry Corbin

as Jonathan Kent in Superman (2000)

Andre Braugher

as Mr. Terrific in Superman (2000)

George Clooney

as Jor-El in Superman (2000)