MultiVersus already has its share of the DC Comics characters and it appears as though Player First Games isn’t done with that universe. New datamined voice lines from the game have audio of Mark Hamill’s Joker acting as the announcer.
https://twitter.com/LaisulMV/status/1574811514489405440?t=pTZqnAQqF7-W5d0hYK39DQ&s=19
As noted by MultiVersus dataminer LaisulMV, these lines have Joker saying “Ooh, we’re out of time,” “Only 30 seconds to mayhem,” and…
