Suggestions by @milesyeargain

Mel Gibson

as Captain Cold in Justice League: Original 7 (1997)

Lance Henriksen

as Sinestro in Justice League: Original 7 (1997)

James Spader

as Brainiac in Justice League: Original 7 (1997)

Alan Rickman

as Ra’s al Ghul in Justice League: Original 7 (1997)

Lance Reddick

as Martian Manhunter in Justice League: Original 7 (1997)

Paul Walker

as Aquaman in Justice League: Original 7 (1997)

FAKE

as Green Lantern in Justice League: Original 7 (1997)

FAKE

as The Flash in Justice League: Original 7 (1997)

Val kilmer

as Batman in Justice League: Original 7 (1997)

Superman (Dean Cain)

as Superman in Justice League: Original 7 (1997)

Carnie Wilson

as Etta Candy in Batman, Superman, and Wonder Woman: The Trinity (1996)

Brad Pitt

as Steve Trevor in Batman, Superman, and Wonder Woman: The Trinity (1996)

Chris O'Donnell

as Robin in Batman, Superman, and Wonder Woman: The Trinity (1996)

Michael Gough

as Alfred Pennyworth in Batman, Superman, and Wonder Woman: The Trinity (1996)

Teri Hatcher

as Lois Lane in Batman, Superman, and Wonder Woman: The Trinity (1996)

Lane Smith

as Perry White in Batman, Superman, and Wonder Woman: The Trinity (1996)

The Joker (Willem Dafoe)

as The Joker in Batman, Superman, and Wonder Woman: The Trinity (1996)

John Shea

as Lex Luthor in Batman, Superman, and Wonder Woman: The Trinity (1996)

Val kilmer

as Batman in Batman, Superman, and Wonder Woman: The Trinity (1996)

Superman (Dean Cain)

as Superman in Batman, Superman, and Wonder Woman: The Trinity (1996)