Suggestions by @billly

Alexa Demie

as Catwoman in Batman Universe (DCU)

Richard Madden

as Batman in Batman Universe (DCU)

Tom Bateman

as Batman in Batman Universe (DCU)

Kennedy McMann

as Batgirl in Batman Universe (DCU)

Daisy Edgar-Jones

as The Atom in DCEU Genderbent

Matt Wood

as Wolverine in MCU X-Men

Kennedy McMann

as Firestar in MCU X-Men Fancasting

Sadie Sink

as Firestar in MCU X-Men Fancasting

Christian Bale

as Mister Sinister in MCU X-Men Fancasting

Jon Hamm

as Mister Sinister in MCU X-Men Fancasting

Reneé Rapp

as Dazzler in MCU X-Men Fancasting

A.J. LoCascio

as Gambit in MCU X-Men Fancasting

Julia Butters

as Shardowcat in MCU X-Men Fancasting

Kennedy McMann

as Phoenix in MCU X-Men Fancasting

Lily James

as Rogue in MCU X-Men Fancasting

Matt Wood

as Wolverine in MCU X-Men Fancasting

Josh Hutcherson

as Wolverine in MCU X-Men Fancasting

John Pork

as James "Logan" Howlett in Marvel Cinematic Universe

Madelyn Cline

as Gwen Stacy in Spider-Man (MCU)

Alexander Ludwig

as Venom in Spider-Man (MCU)