Litigious Tom Cruise is sure to be all fired up by the brains behind irreverent cartoon series South Park after a recent US episode poked fun at his religious beliefs and his sexuality.

The movie hunk has been keen to protect himself from allegations he's secretly gay by waging war with tabloids and publications who make claims against him.

And now he's at the centre of an outrageous South Park episode, during which his animated double refuses to come out of a closet after a meeting with his hero, Scientology founder L RON HUBBARD, who criticises his acting skills.

In the hilarious episode, Cruise's ex-wife Nicole Kidman and fellow Scientologist John Travolta attempt to coax him out of the closet.

Kidman's animated double says, "Don't you think this has gone on long enough? It's time for you to come out of the closet... You're not fooling anyone."