Aidan Gallagher is an American actor. He started his Hollywood career in 2013, debuting in an episode of Modern Family. He also acted in the short film called You & Me. The following year, he starred as Nicky in the Nickelodeon series Nicky, Ricky, Dicky & Dawn, which he played from 2014 to 2018. His role on the said show earned him recognition. At the same time, he appeared as himself in Nickelodeon’s Ho Ho Holiday Special. He went on to play a cameo role in Nickelodeon’s Sizzling Summer Camp Special. Recently, he became further known for starring as Number Five / The Boy in the Netflix series The Umbrella Academy.