Mollie first appears in "Lincoln Loud: Girl Guru" where Flat Tire asks her out. She accepts his offer at first, but then rejects after learning that they would go to a funeral. This causes her to change seats and call Flat Tire a "morbid weirdo".
She then reappears in "The Waiting Game", where she makes yet another small cameo when Chandler was passing out the invitation using a plunger.
She returns with yet another non-speaking cameo in "Making the Grade".
She later appears as a background character in "Frog Wild".
She makes another non-speaking cameo in "Mall of Duty", where she is seen waiting in line for an autograph.
She returns again with a speaking cameo in "Pasture Bedtime", attending Girl Jordan's pool party and challenging Lincoln to a cannonball contest.
Appearance
She has brown hair, thin eyebrows, 3 pairs of eyelashes, and buckteeth. She wears a pink shirt, purple blazer, red skirt in a vertical striped pattern, purple stockings, and brown boots.
She is named and modeled after production coordinator Mollie Freilich.
Mollie is one of the few girls at school Lincoln is on friendly terms along with Ronnie Anne (when she was still a student at his school), Girl Jordan, Stella, and Haiku.