Mia Talerico, who starred on 'Good Luck Charlie' as a child, shocks fans by sharing photos from her first day of senior year. Mia, 17, reveals in the caption, it's her last, first day of school and even jokes, 'Now, I'm starting to feel old.' Fans first met Mia on the Disney Channel hit series, which ran from 2010 to 2014. Mia's still in the public eye, posting lifestyle content as an influencer and starring in the upcoming film 'American Summer' as the younger version of Christie Brinkley's character.
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