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Michael Rosenbaum reveals he wants to play Lex Luthor in James Gunn’s future DC Universe. TheSmallvillestar has portrayed the role in the show, and is open to reprising it should Gunn calls him in.

In a Twitter post, a fan asked Rosenbaum if he is willing to return as Lex Luthor for Gunn’s brand-new DC projects, and the actor replied, “For James, I’d do anything.” Fans would not be surprised to know that Rosenbaum is friends with Gunn in real life.
RELATED:‘Zack Snyder wasn’t the problem with DC’: James Gunn’s Chaotic DCU Reshuffle Proves Snyder Actually Tried Saving DC By Giving it an Identity, Gunn and WB Stripped it Out

Brand New DC Universe Is On The Horizon
Lex Luthor was portrayed by Jesse Eisenberg in 2016’sBatman v Superman: Dawn of Justicewith Henry Cavill, Ben Affleck, and Gal Gadot as the main leads. The antagonist is depicted as a young businessman consumed by his obsession to defeat Superman. Because Gunn has been doing a major overhaul of the DC Universe and Cavill is not returning as Superman anymore, it is unlikely that Eisenberg will reprise the role.
This leaves the position of Lex Luthor open to any actor at the moment. Gunn and Peter Safran have been working on their future DC projects following the cancellation of certain beloved franchises, such as Cavill’sMan of Steel, Gadot’sWonder Woman, and Jason Momoa’sAquaman. One of the plans revealed is a new Superman script that will focus on the early life of the character.

for james i’d do anything. 🙂
— Michael Rosenbaum (@michaelrosenbum)August 05, 2025

There has been no confirmation so far of other characters appearing in the franchise, and no cast or director has been attached to the project as of yet.
RELATED:After James Gunn’s Reportedly Recasting Entire Justice League, DC Fans Demand DCAU Justice League Lineup – Green Lantern, Martian Manhunter to Join the Fray

James Gunn Nepotism Rumors Might Affect Future Casting
Fans are questioning Gunn’s reputation for hiring certain people in his projects. TheGuardians of the Galaxydirector has been accused of nepotism over casting his partner Jennifer Holland inThe Suicide SquadandPeacemaker.
Check out these tweets by fans:
https://twitter.com/RabbitSkwad/status/1604853616518598656
So when you decided to revamp things at DC you decided to keep all the actors you’ve worked with on your version of suicide squad and peacemaker right? Just none of the other ones. Oh and make sure your Brother got a nice part cause Nepotism and all
— Bradley Sweets (@bradleysweets21)June 01, 2025
https://twitter.com/Super_ny_fan/status/1604886917182795776
James Gunn: yes everyone is out except my wife.#nepotism#FireJamesGunn@wbd
— Harish Ravisundar (@harish_ravi21)August 07, 2025
if you really wanted to reboot everything why dont you reboot Peacemaker too huh?@JamesGunn
Or are you afraid bcs your wife is in it, nepotism much?
— Mervin (@DoubleOSancho)July 22, 2025
While many viewers enjoyed Holland’s performance as Emilia Harcourt, this sets a precedent that Gunn may only be choosing favored people to join in his projects. Now, this gives fans the impression that Rosenbaum is more likely going to be cast as Lex Luthor because of his friendship with Gunn.
There is no problem working with people who like each other, but talent and commitment to the project should be the main priority. Gunn is currently facing a tumultuous time with all the backlash following the earth-shattering announcements over the past few weeks, and the last thing he would want is another controversy.
Meanwhile, James Gunn’sGuardians of the Galaxy Vol. 3will arrive in theaters on June 01, 2025.
Source:CBR
RELATED:Henry Cavill Was Reportedly Used by The Rock as a Pawn to Control DCU as Superman Actor Was Never Given a Written Contract Despite Being Promised Multiple Films
Ariane Cruz
Senior Writer
Articles Published :3533
Ariane Cruz is a Senior Writer at FandomWire, majorly focusing on TV shows with over 3,000 articles published. Her love for pop culture and the creative arts fuels her passion to deliver engaging and informative stories. Her daily consumption of films, shows, and books keeps her energized for the day, along with her mission to serve as the bridge between fans and their favorite franchises.