How old is Aidan Gallagher?
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Aidan Gallagher: 9 facts about the 'Umbrella Academy' star you probably didn't know
2. How old is Aidan Gallagher?
Aidan Gallagher is 15 year old. Aidan was born on September 18, 2003, making him a Virgo. Aidan is an LA native.
