Luke Palmeiro is the son of Lucy Palmeiro, the patient in The Socratic Method. He was portrayed by actor Aaron Himelstein. Luke became his mother's caregiver after she lost her job to what her doctors thought was schizophrenia. He kept detailed records of what she ate and drank, and organized her clothing for her. He usually accompanied her to social services offices and made sure her bills were paid. He usually lied and said he was 18 when anyone asked. When someone asked who was Lucy's dependent listed on her forms, he said it was his younger brother.