Suggestions by @gagefranke

Deadpool (Wade Wilson)

as Writer in Deadpool VS The Boys

Dove Cameron

as Rapunzel in I think dove camron should be rapunzel

Maggie Smith

as Aunt Lucille in Superhero Movie

Tom Hanks

as Uncle Albert in Superhero Movie

Ryan George

as Rick Riker in Superhero Movie

Michael Keaton

as Tek-Knight in THE BOYS [Movie - No Actors from the Show Original Actors]

Mary Elizabeth Winstead

as Nancy Wheeler in Stranger Things as Adults

Lance Reddick

as Martian Manhunter in The Adventures of Blue Beetle & Booster Gold

Neil Patrick Harris

as Booster Gold in The Adventures of Blue Beetle & Booster Gold

Michael B. Jordan

as Cyborg in The Adventures of Blue Beetle & Booster Gold

Bill Skarsgård

as Dr. Jonathan Crane in Batman

Dylan O'Brien

as Mike Wheeler in Stranger Things as Adults

Donald Glover

as Lucas Sinclair in Stranger Things as Adults

Chris Pratt

as Adult Beverly Marsh in It (Genderswap/Genderbent)

Donald Glover

as Aaron Davis/The Prowler in Peter Parker, The Amazing Spider-Man

Keiynan Lonsdale

as Miles Morales/Spider-Man II in Peter Parker, The Amazing Spider-Man

Logan Lerman

as Peter Parker/Spider-Man in Peter Parker, The Amazing Spider-Man

Jack Quaid

as Peter Parker/Spider-Man in Peter Parker, The Amazing Spider-Man

Kiernan Shipka

as Lamplighter in The Boys Genderbend (The Girls)

Steve Carell

as Doug Gardner in Atypical Recast