Kobra [Jason Burr]; Justice Society of America [JSA; Dr. Mid-Nite [Pieter Cross]; Green Lantern [Alan Scott]; Mr. Terrific [Michael Holt; also as White King]; Power Girl]; Checkmate [Tim (death); Steve (death)]; Dr. Frederic Asher (first appearance); Lawrence Hawthorne (first appearance); Joe; Tyler Kemp (death); Kobra Cult (villains); Ariadne Persakis (villain); Gaz (villain)
Justice Society of America [JSA; Amazing-Man [Markus Clay]; Citizen Steel [Nathan Heywood]; Damage [Grant Emerson]; Dr. Mid-Nite [Pieter Cross]; Green Lantern [Alan Scott]; Judomaster [Sonia Sato]; Liberty Belle [Jesse Chambers]; Mr. Terrific [Michael Holt]; Obsidian [Todd Rice]; Stargirl [Courtney Whitmore]]