How Old Are the Pretty Little Liars Cast Members? You’ll Be Surprised! (PHOTOS) 4 of 10 Prev Autoplay Next Share Tweet November 1, 2012 at 04:24PM EDT by Alissa Kombert Related: Pretty Little Liars, TV Stars, Lucy Hale, Ashley Benson, Troian Bellisario, Shay Mitchell, Ian Harding, Keegan Allen, Tyler Blackburn, Aria Montgomery, Hanna Marin, Spencer Hastings, Emily Fields, Ezra Fitz, Toby Cavanaugh, Caleb Rivers, Hollywood It Girls full size Credit: David Livingston/Getty Images How Old Is Bianca Lawson? Bianca Lawson (Maya St. Germain) is 33 years old. That's about 17 years older than her character on the Pretty Little Liars! Shocked yet?