Does Lex Luthor appear in Peacemaker season 2 episode 6?

HBO Max’s Peacemaker just raised the stakes in its second season. Episode 6 not only introduced Nicholas Hoult as Lex Luthor but also delivered a surprise Superman cameo while confirming one of the show’s darkest fan theories.

The episode follows Rick Flag Sr. (Frank Grillo) into Belle Reve Prison, where he confronts the iconic villain. Hoult brings sharp sarcasm to the role as Lex mocks Flag for his sudden alarm over metahuman threats, reminding him of their past differences.

Although initially dismissive of Peacemaker, whom he calls “no threat,” Lex ultimately agrees to cooperate. Flag later reveals to Sasha (Sol Rodríguez) that they are now working with Luthor, setting the stage for bigger conflicts ahead.

In its closing moments, the episode finally confirmed what fans had long suspected about the alternate dimension at the center of this season.

Adebayo (Danielle Brooks) was chased through her neighborhood by hostile neighbors, while Peacemaker and Harcourt (Jennifer Holland) discovered that the American flag unfurled to reveal a swastika in place of stars.

The reveal confirmed that the alternate reality was indeed a Nazi-controlled world.

Adding to the surprises, Superman briefly appeared in the episode, marking the most significant cameo yet in the series and deepening its ties to James Gunn’s wider DC Universe.

With Lex’s involvement, the Nazi dimension revealed, and Superman stepping into the storyline, Peacemaker is heading into its most dramatic and high-stakes chapters yet.