“We’re taking inspiration from a DC crossover from the late 1980s known as Invasion!, which featured an alien race called The Dominators, who’d previously vexed the Legion of Superheroes,” Arrow and Legends of Tomorrow executive producer Marc Guggenheim explained. “We’re using cutting-edge prosthetics and computer effects to achieve a feature film-quality look which is faithful to Invasion! artist Todd McFarlane’s interpretation of the characters.”
The Dominators are a highly technologically advanced race, whose place in their rigid hierarchical society is determined by the size of a red circle on their forehead. They have a distinct interest in the metagene that makes some humans into metahumans in the DC universe.
The Flash season three premieres on October 4 at 8 p.m., Arrow season five starts October 5 at 8 p.m., Supergirl season two premieres October 10 at 8 p.m. and Legends of Tomorrow season two begins October 13 at 8 p.m. Sky has yet to announce dates for the series, but will presumably have to try to juggle schedules to ensure the various crossover events this season marry up!