Suggestions by @andrew_cozzini

Michael Fassbender

as Batman in The Brave and The Bold (James Gunn DCU)

Jeff Bridges

as Hugo Strange in The Brave and The Bold (James Gunn DCU)

James McAvoy

as Mad Hatter in Brave and the Bold

Dane DeHaan

as Jason Todd in Brave and the Bold

Hayden Christensen

as Dick Grayson in Brave and the Bold

Michael Fassbender

as Bruce Wayne in Brave and the Bold

James McAvoy

as Mad Hatter in Who should be the villain or villains in James Gunn's "The Brave and the Bold"?

Dave Bautista

as Bane in James Gunn's DCU cinematic universe

James McAvoy

as Mad Hatter in James Gunn's DCU cinematic universe

Pierce Brosnan

as Alfred Pennyworth in James Gunn's DCU cinematic universe

Jonathan Pryce

as Alfred Pennyworth in James Gunn's DCU cinematic universe

Kevin Bacon

as Commissioner James Gordon in James Gunn's DCU cinematic universe

Chloë Grace Moretz

as Supergirl in James Gunn's DCU cinematic universe

Felicity Jones

as Lois Lane in James Gunn's DCU cinematic universe

Emma Stone

as Barbara Gordon in James Gunn's DCU cinematic universe

Hayden Christensen

as Dick Grayson in James Gunn's DCU cinematic universe

Morena Baccarin

as Wonder Woman in James Gunn's DCU cinematic universe

Ewan McGregor

as Green Arrow in James Gunn's DCU cinematic universe

Alan Cumming

as Joker in James Gunn's DCU cinematic universe

Jim Carrey

as Joker in James Gunn's DCU cinematic universe