Breaking Celebrity News has exclusively learned that troubled actor Charlie Sheen has officially hit rock bottom — and the HIV-positive train wreck has moved back in with his parents!

Once TV's highest paid actor, the former Two and a Half Men star is so broke that he's living in the Malibu guesthouse of Martin and Janet Sheen.

The bad boy — who pulled down a whopping $1.8 million for each episode of the CBS sitcom in 2010 and 2011 — was recently spotted at a coffee shop near his folks' home.

"It's sad," a spy close to the man once known as "Goodtime Charlie" tattled to Breaking Celebrity News. "He was worth well over $125 million at one time and thr