This might be terrible, and he’s probably a little too old for the part now, but my first thought at hearing John C. Reilly was “Booster Gold”. And yes, it would probably be terrible, but I would absolutely watch him in a movie with Will Ferrell as Blue Beetle.
Rebel Wilson: Ma Gunn, the crime school headmaster who briefly takes in the young Jason Todd.
Matthew McConaughey: The smooth talking, lady-charming, always too clever for his own good cowpoke they call Bat-Lash, and occasional thorn in Jonah Hex’s side.
Natasha Lyonne: Angie Spatchcock, John Constantine’s rough-edged, foul-mouthed ex-girlfriend and practicing magician/waitress. You’d have to change her nationality, but Lyonne would nail the spirit of the character. Nasty piece of work, ask anyone.
Jason Sudeikis: The rumor mill says that Sudeikis is actually in talks to play Ted Kord right now, and that’s honestly just perfect.
Cecily Strong: I could see her doing a great Leslie Willis, whose potential as an anti-Superman radio personality I felt was always squandered in favor of her Livewire persona.
John C. Reilly: In the right production, it could be fun to bring back the hapless Chief O’Hara from the Batman ‘66 show for him to play opposite a more dignified Commissioner Gordon.
Lady Gaga: Many years ago, rumor had it that Gaga was a candidate to play Harley Quinn, in a Joker movie which was never made. But now, I could see her going full-on Cosmic Supervillain, like a Perpetua.