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).
Greg Heffley (Jacob Tremblay), an 11-year-old, is about to begin middle school and wishes to become popular among the students. However, his attempts to gain fame land him in hilariously sticky situations.
