Machine Gun Kelly and Steve Buscemi will guest star on Pete Davidson's new series Bupkis. Peacock announced a lineup of new guest stars for the upcoming comedy series in a press release yesterday. In addition to Kelly and Buscemi, La La Anthony, Charlamagne Tha God, Bobby Cannavale, Philip Ettinger, Al Gore, Paul Walter Hauser, Sunita Mani, John Mulaney, Oona Roche, Cliff "Method Man" Smith, Jon Stewart and Marissa Jaret Winokur will appear as guest stars. Previously announced guest stars include Charlie Day, Brad Garrett, Simon Rex, Ray Romano, Kenan Thompson and Chase Sui Wonders. The show is a semi-autobiographical series based on Davidson's life that follows a fictionalized version of the actor and comedian as he "attempts to work through unique family dynamics and the complexities of fame to form meaningful relationships." Bupkis hits Peacock on May 4.