Aidan Gallagher (born September 18, 2003) is an American actor, best known for his role as Nicky Harper on the Nickelodeon series Nicky, Ricky, Dicky and Dawn (2014-2018).
Robin is sent to work with the Teen Titans after volatile behavior botches up a Justice League mission. The Titans must then step up to face Trigon after he possesses the League and threatens to conquer the world
