Special Guest Stars Timothy DeLaGhetto as Dr. Yang Guest Stars Anna Akana as Nicole Morgan Krantz as Sam Karl T. Wright as Dr. Shulman Co Starring Mark Saul as Dr. Sheldon Ayumi Iizuka as Doctor #1 Allison Bills as Charlie's Mom Santana Dempsey as Arielle Stevenson Jason Horton as Arthur Grayson Kilpatrick as Charlie