• Freeform's "Pretty Little Liars" is a teen mystery drama that aired from 2010 to 2017. 
• The show's main characters were teens, but many of the actors were much older. 
• Bianca Lawson was 31 when she played 16-year-old Maya St. Germain.

Lucy Hale played 16-year-old Aria Montgomery when she was 20.

The character of creative and fashionable teen Aria Montgomery was first brought to life by Lucy Hale when the actress was about a week shy of her 21st birthday.

Tyler Blackburn played teenager Caleb Rivers when he was 23 years old.

When Caleb Rivers, troubled teen and love interest, first appeared on season one of the show, he was said to be around 18 years old. The actor who played him, Tyler Blackburn, was 23 years old at the time.