Suggestions by @papa'slittlemonster

Thomas Jane

as Dr. Thomas Wayne in Batman

Vera Farmiga

as Martha Wayne in Batman

Jordana Brewster

as Talia Al Ghul in Batman

Domhnall Gleeson

as Dr. Jonathan Crane in Batman

Felicity Jones

as Vicki Vale in Batman

Richard Gere

as Jonathan Kent in Superman

Jason Momoa

as Lobo in Superman

Mark Wahlberg

as Parasite in Superman

Teresa Palmer

as Supergirl in Superman

Luke Goss

as Lex Luthor in Superman

Ajiona Alexus

as Alex in Totally Spies

Frank Welker

as Scooby-Doo in Scooby-Doo!

Zach Roerig

as Fred Jones in Scooby-Doo!

Matt Barr

as Shaggy Rogers in Scooby-Doo!

Elliot Page

as Velma Dinkley in Scooby-Doo!

Kate Mara

as Daphne Blake in Scooby-Doo!

Olga Kurylenko

as Evil-Lyn in He-Man and the Masters of the Universe

Michael Cudlitz

as Man-At-Arms in He-Man and the Masters of the Universe

Alexandra Breckenridge

as Teela in He-Man and the Masters of the Universe

Christina Hendricks

as The Sorceress in He-Man and the Masters of the Universe