<Li> Martin Sheen as Harvey, father of Rose, and Evelyn's fling (season 3) (real - life father of Charlie Sheen) </Li> <Li> Brooke Shields as Danielle, Charlie and Alan's neighbor (season 4) </Li> <Li> Christian Slater as himself (series finale) </Li> <Li> Rena Sofer as Chrissy, the "mother" of Charlie's "son" (season 6, episode 1) </Li>

Two and a half man episode guide tv.com