Several stars of 'Superman' show up in the second season of James Gunn's superheroes series alongside John Cena.

Peacemaker: Season 2 begins with a sequence aptly titled “Previously in the DCU,” where key moments from Season 1 are ...

Here, the group consists of Superman, Supergirl, Mr. Terrific, Guy Gardner, and Hawkgirl. The latter two heroes have their own fresh dialogue, too, with the Green Lantern complaining that Peacemaker ...