Alan

Alan Guy Moore (Richard Beckinsale) is a likeable young medical student. Rigsby treats him with mistrust, mainly because of Alan's permissive, left wing views. Alan has little luck with girlfriends, but is content with his life. Alan hails from a middle class family and appreciates music and arts. Although Alan is academically successful, socially he is somewhat inept, appearing to have few friends outside of the lodging house. Alan occasionally confides his problems with Rigsby, who is always unsympathetic. On one occasion however, Alan is defended by Rigsby, when the incandescent father of Brenda (one of his girlfriends) suspects the two of them have been having sex, Rigsby sends the man out of the house with a 'flea in his ear', defending Alan, apparently because Rigsby was offended the man assumed Rigsby to be Alan's father. Alan is immature and Rigsby does become something of a strange father figure for him.