<Ul> <Li> Lily Collins as Ellen (Eli), 20 year old anorexic patient </Li> <Li> Keanu Reeves as Dr. William Beckham </Li> <Li> Carrie Preston as Susan, Ellen's stepmother </Li> <Li> Lili Taylor as Judy, Ellen's mother </Li> <Li> Alex Sharp as Luke, 19 year old anorexic patient </Li> <Li> Liana Liberato as Kelly, Ellen's 18 year old half - sister </Li> <Li> Brooke Smith as Olive, Judy's girlfriend </Li> <Li> Leslie Bibb as Megan, an anorexic patient </Li> <Li> Kathryn Prescott as Anna, a bulimic patient </Li> <Li> Ciara Quinn Bravo as Tracy, a bulimic patient </Li> <Li> Maya Eshet as Pearl, an anorexic patient </Li> <Li> Lindsay McDowell as Kendra, a patient suffering from binge eating disorder . </Li> <Li> Retta as Lobo, the inpatient Nurse </Li> <Li> Alanna Ubach as Karen, the therapist </Li> </Ul> <Li> Lily Collins as Ellen (Eli), 20 year old anorexic patient </Li> <Li> Keanu Reeves as Dr. William Beckham </Li> <Li> Carrie Preston as Susan, Ellen's stepmother </Li>

Who plays the doctor in to the bone