Peacemaker's second season, starring John Cena, introduces Guy Gardner and Hawkgirl, set to premiere August 21.

The second season of "Peacemaker," starring John Cena, is set to premiere on August 21, 2025. Created by James Gunn, the show features the return of most original cast members, with new additions including Nathan Fillion as Guy Gardner and Frank Grillo as Rick Flag Sr. The trailer hints at multiverse storylines and the return of previous characters like Hawkgirl. Gunn wrote all eight episodes and directed three of them.