James Gunn, DC Studios co-CEO and writer for Peacemaker, has revealed confirmed details about two significant cameo appearances set for the final three episodes of Peacemaker Season 2. Fans have been eagerly anticipating these surprises, largely fueled by Gunn’s early hints at a major appearance from a vital DC character. Speculation has run wild, with guesses ranging from Lex Luthor to Superman, as portrayed by David Corenswet, and some even suggesting Martian Manhunter might make an appearance.
As the season approaches its conclusion, excitement around these cameos has dominated fan discussions. Danielle Brooks, who stars in Peacemaker, added fuel to the speculation by sharing a behind-the-scenes photo alongside Corenswet in costume, sparking rumors of Superman’s involvement. Gunn further elaborated on the mystery during an interview with Collider, confirming one cameo is connected to Superman while the other will be an unexpected, major surprise.
Insights on Peacemaker’s Final Cameos from James Gunn
Gunn explained to Collider that viewers can expect to see “one more character from Superman,” along with
“one really big appearance by somebody in the end of the season that I don’t think people will see coming.”
Earlier in the season, cameos included Hawkgirl, Green Lantern’s Guy Gardner, Maxwell Lord, and Rick Flag Sr., setting a pattern of surprise guest appearances.
When asked about fan reactions to the season finale, Gunn described it as extremely emotional, stating,
“Bittersweet doesn’t even begin to say how bittersweet it is.”
Though he remained tight-lipped on specifics, his comments imply the final episodes may bring significant developments for Christopher Smith and the broader DC Universe (DCU).
Potential Cameo Theories and Season 2’s Story Arc
Following initial cameos in Episode 1, theories have focused on whether Nicholas Hoult‘s Lex Luthor will appear in the concluding episodes, especially considering his expertise with alternate universes and portals. Episode 5 ended with Christopher Smith closing a dangerous interdimensional portal, but trailers confirm it will reopen in Episode 6, leaving room for further complications.
The series trailer also shows Rick Flag Sr. (Frank Grillo) visiting Belle Reve prison to investigate the portal issue, likely interacting with Luthor, who is already incarcerated there. This interaction could explore the dangers and intricacies of the dimensional rifts, with potential consequences involving Lex seeking a deal, possibly linked to the events of the upcoming Man of Tomorrow film, which Peacemaker Season 2 serves as a prequel to.
Exploring the Biggest Surprise Cameo in Peacemaker Season 2
The other significant cameo teased by James Gunn has sparked numerous theories. Gunn hinted in a social media post that characters from Charlton Comics could appear, naming Blue Beetle (Ted Kord), Captain Atom, The Question, and Nightshade as possibilities. Among these, Ted Kord’s Blue Beetle stands out as the strongest candidate, especially since his post-credits scene in the Blue Beetle movie hinted that he remains alive but trapped in a strange location.
This trapped state aligns well with Peacemaker’s Quantum Unfolding Chamber, which contains 99 dimensions. It’s plausible that Blue Beetle is held within one of these alternate dimensions, and Peacemaker’s ongoing efforts in Season 2 could lead to his rescue. This would open intriguing new storylines, including potential reunions with his daughter and the present-day Blue Beetle portrayed by Xolo Maridueña.
Returning Core Characters and Season 2 Premiere Details
Peacemaker Season 2 continues to bring back its core ensemble, including John Cena, Jennifer Holland, Freddie Stroma, Danielle Brooks, and Steve Agee, collectively known as the 11th Street Kids. The season premiered on HBO Max on August 21, 2025, maintaining the balance of action, humor, and deeper DC Universe lore that fans have come to expect.
With the final episodes building toward major reveals and character arcs culminating, the series is solidifying its role as an integral part of the expanding DC media landscape.
