Suggestions by @curtissummers

Vanessa Hudgens

as Sunny Starscout/Lionel Luther (In Sunny Starscout's body} in YGO: Kingdom Hearts: Smallville: The Complete Fourth Season (Arrowverse Canon)

Isobelle Molloy

as Kara Kent in Smallville CW 2022 Remake

David Kronenberg

as Jimmy Olsen in Smallville CW 2022 Remake

Sam Worthington

as Lex Luthor in Smallville CW 2022 Remake

Tessa Thompson

as C'yra of D'riluth III in Masters of the Universe: Revelation

Michael Sheen

as Spirit in Masters of the Universe: Revelation

Thomas Mann

as Kyle Reccula in Masters of the Universe: Revelation

Lewis Black

as Keldor in Masters of the Universe: Revelation

J.K. Simmons

as Duncan in Masters of the Universe: Revelation

Amanda Bynes

as Teela in Masters of the Universe: Revelation

Francesca Marie Smith

as Adora of Etérnia in Masters of the Universe: Revelation

Matthew Lillard

as Adam of Etérnia in Masters of the Universe: Revelation

Brandon Routh

as Charizard the Dragon Pokémon in YGO: Kingdom Hearts: Superwoman: The Movie (Arrowverse Canon Roleswap version)

Brandon Routh

as Charizard the Pokémon Dragon (a new character created for the movie.) in YGO: Kingdom Hearts: Superman Returns (Live Action/Animated Arrowverse Canon)

Dan Green

as Eon (Ben) in Ben 10: Race Against Time (Animated Version)

Mena Massoud

as Stanford in YGO: Kingdom Hearts: Superman Returns (Live Action/Animated Arrowverse Canon)

Tristan Lake Leabu

as Bank Gunner (John Corben) in YGO: Kingdom Hearts: Superman Returns (Live Action/Animated Arrowverse Canon)

Dwayne Johnson

as Charizard the Pokémon Dragon (a new character created for the movie.) in YGO: Kingdom Hearts: Superman Returns (Live Action/Animated Arrowverse Canon)

Mark Ruffalo

as Charizard the Pokémon Dragon (a new character created for the movie.) in YGO: Kingdom Hearts: Superman Returns (Live Action/Animated Arrowverse Canon)

Sofia Carson

as Pipp Petals in YGO: Kingdom Hearts: Superman Returns (Live Action/Animated Arrowverse Canon)