Suggestions by @lorog

Meg Donnelly

as Supergirl in Superman: The Kryptonian Collector

Sebastian Stan

as Superman in Superman: The Kryptonian Collector

Karl Urban

as "The Stranger" in Maximus Knight (Season Five)

Spoiler

as "The Stranger" in Maximus Knight (Season Five)

Joseph Gordon-Levitt

as "My Younger Brother" in Maximus Knight (Season Five)

Spoiler

as "My Younger Brother" in Maximus Knight (Season Five)

Jacob Elordi

as The Muscular Terrific in Maximus Knight (Season Five)

Justice Smith

as The Iron Knight in Maximus Knight (Season Five)

Keke Palmer

as Crimson Hornet in Maximus Knight (Season Five)

Madison Lintz

as Clandestine in Maximus Knight (Season Five)

Mason Dye

as Goldenheart in Maximus Knight (Season Five)

Winston Duke

as Steel Defender in Maximus Knight (Season Five)

Lee Pace

as Vitus Maximus in Maximus Knight (Season Five)

Tatiana Maslany

as Interval in Maximus Knight (Season Five)

Gemma Chan

as Gratia in Maximus Knight (Season Five)

David Harbour

as The Stronghold in Maximus Knight (Season Five)

Lashana Lynch

as The Orbit in Maximus Knight (Season Five)

Sam Witwer

as The Devourer in Maximus Knight (Season Five)

Melissa Barrera

as Vera Mendes in Maximus Knight (Season Five)

Liev Schreiber

as Jack Wallard in Maximus Knight (Season Five)