Charlie Sheen

Raj's ego puts all of his friendships in jeopardy when he gets an inflated sense of self. Newly famous because of an article in a magazine, Raj (series regular KUNAL NAYYAR) makes a disastrous play for Leonard's longtime crush, Penny.

Phoebe catches chicken pox just as her old flame Ryan arrives in town on leave from the Navy. Even though he hasn't yet had chicken pox, he can't stand to be apart and they both spend the rest of the time trying to not scratch. Joey gets a job at Chandler's office but decides to play it as a role. The character he creates, Joseph, has a wife and kids and ultimately blames Chandler for his own screwup. Monica is upset that Richard doesn't have a "thing": an unexplainable quirk. He eventually comes up with one to ease her mind.

Barry fakes being sick in order to have an epic adventure like the one in the film "Ferris Bueller's Day Off," except things don't go as planned and turn from bad to worse when Pops and Adam get involved.

The guests on Graham's sofa are Melissa McCarthy, Kristen Wiig, Kate McKinnon and Leslie Jones, who are all starring in the new Ghostbusters remake, as well as actor Charlie Sheen, here to talk about his spectacular fall from grace.

During World War II, a cowardly soldier unexpectedly becomes a hero when his unit lands on a battle-torn Italian shore. Charlie Sheen guest-stars.