And it's no surprise that Sheen bonded with
Heather Locklear, recently caught by
RadarOnline heading into
rehab for a fifth time! The two worked together on "Spin City," "Two and a Half Men," "Scary Movie 5," and the big-screen comedy "Money Talks." Sheen was asked to list his former costars starting with his favorite, and he quickly replied: "Heather, and then Heather!"