https://www.the-numbers.com/movie/Peoples-Joker-The-(2024)#tab=box-office
From press release but he does get credited for the role...
THE PEOPLE’S JOKER features a superhero-sized cast of celebrated comedic talent in both voice and live action roles behind the vibrant kaleidoscope of characters that lampoon the iconic heroes and villains of the DC comics’ world, featuring cameos from comedy multi-hyphenate Tim Heidecker, award-winning actor Bob Odenkirk, Maria Bamford (Netflix’s Big Mouth, Adult Swim’s Teenage Euthanasia), and Scott Aukerman (Between Two Ferns with Zach Galifianakis co-creator and host of the Comedy Bang! Bang! podcast), with Vera Drew, Lynn Downey (Amazon Prime Video’s Daisy Jones & The Six), Nathan Faustyn (SADDLED), and Kane Distler, in his film debut, making up the film’s core cast. With her own life as a trans woman and artist motivating the film’s story and theme, the script was co-written by close creative collaborator Bri LeRose (Netflix’s Magic for Humans and Chad & JT Go Deep).