In the third season of the hit ABC Family original series, senior year means big changes for Bay and Daphne, as the Carlton School for the Deaf receives an influx of hearing students who are not happy to be there. Daphne begins working at a free clinic and bonds with a pre-med student with a spinal injury. Bay is inspired by her art teacher when she takes an art class at a local college. Meanwhile her feelings for Emmett become complicated when he begins dating someone. Toby tries to unite a divided Carlton by coaching girls' field hockey, and Kathryn dips her toes into new territory when she makes friends with a gregarious tap dancer. Switched at Birth stars Katie Leclerc, Vanessa Marano, Constance Marie, D.W. Moffett, Lea Thompson, Lucas Grabeel, Gilles Marini, Sean Berdy, with guest star Marlee Matlin.