She played Vanessa Page on Disney Channel sitcom Jonas.
She was born and raised in Frankfort, Illinois.
Walker's other television credits include Gossip Girl, Lincoln Heights, Monk, The Glades and Privileged.
She also appeared in the films Mostly Ghostly and the TV film Cheerleader Camp opposite Kristin Cavallari.
Walker also appeared in the Funny or Die video Zac Efron's Pool Party.