TV Article Comic-Con 2015: Scorpion gets expanded episode, Gene Simmons to guest By Natalie Abrams Natalie Abrams Senior Writer EW's editorial guidelines Published on July 9, 2015 12:00PM EDT Photo: Monty Brinton/CBS Gene Simmons has been tapped to guest-star in the upcoming second season premiere of Scorpion, executive producer Nicholas Wootton announced at Comic-Con on Thursday. Details on Simmons’ role weren’t immediately available, but following the rock legend and Kiss bassist’s appearance in the Monday, Sept. 21 episode, Scorpion will air a special 90-minute episode, following the debut on Supergirl on Oct. 26 on CBS. The cast of Scorpion hit the stage of Comic-Con alongside the casts of Zoo, Limitless (find out how the Con audience reacted to the pilot), Extant, and Under the Dome. •Everything to know about EW’s Comic-Con 2015 coverage •See the schedule for Comic-Con’s movie panels •See the schedule for Comic-Con’s TV panels •9 burning questions about Comic-Con 2015 Click here for more of Entertainment Weekly‘s Comic-Con coverage.