Juan Alvarez, who prefers to be addressed as Alvie, is a Puerto Rican patient at Mayfield Psychiatric Hospital who meets House in the episode Broken. He was House's roommate, and suffers from bipolar disorder (as a result, Alvie is a chatterbox, and raps at every opportunity). He was portrayed by Tony-Award-winning composer and lyricist Lin-Manuel Miranda, After House is discharged, Alvie agrees to take medication. At one point during Alvie's life, his uncle was fondling him.