The latest episode of "Two And A Half Men" (Mon., 9 p.m. ET on CBS) resurrected Charlie Sheen's character, the late Charlie Harper. Hopped up on morphine after a mild heart attack, Alan (Jon Cryer) had a vision of his brother Charlie who'd come back from hell just to abuse him some more.But there was no on-screen reunion between Sheen and Cryer: Charlie's ghost was instead played by a cigar-chomping Kathy Bates.