Aidan Gallagher, born on September 18, 2003, is an actor on the Nickelodeon series Nicky, Ricky, Dicky & Dawn. Aidan portrays the role of Nicholas "Nicky" Harper, the quirky quad.
Aside from his Nickelodeon acting, Aidan is also known for his roles as Evan on the TV movie "Jacked Up" (2013), Alec on the TV series "Modern Family" (2013), and Young David on the short "You & Me" (2013).