It turns out he wasn’t actually hit by a train, he was being held captive in his stalker Rose’s (Melanie Lynskey) basement!
After he escapes from Rose’s house, he collects on his $2.5 million in past royalties and begins sending checks to ex-girlfriends and family… everyone but Alan (Jon Cryer). He even threatens Walden (Ashton Kutcher) with a letter!
The two men are relieved when a police officer stops by (played by Arnold Schwarzenegger) to tell them they’ve picked up a man fitting Charlie Harper’s description. As it turns out, it isn’t Charlie… it’s Christian Slater playing himself.
The episode also included an animated sequence and a cameo by Angus T. Jones.
At the end of the show, a Charlie lookalike rings the doorbell at his old house. Before the audience can see his face, a piano is dropped on his head. The camera pulls back to reveal the show creator Chuck Lorre who utters Sheen’s catchphrase “Winning,” before another piano drops.
In his final “Two and a Half Men” vanity card, Lorre told fans that Sheen was invited back for the finale, but declined.
Lorre wrote, "I know a lot of you might be disappointed that you didn't get to see Charlie Sheen in tonight’s finale. For the record he was offered a role.
"Our idea was to have him walk up to the front door in the last scene, ring the doorbell, then turn, look directly into the camera and go off on a maniacal rant about the dangers of drug abuse. He would then explain that these dangers only apply to average people. That he was far from average. He was a ninja warrior from Mars. He was invincible. And then we would drop a piano on him. We thought it was funny. He didn't."
"Instead, he wanted us to write a heart-warming scene that would set up his return to primetime TV in a new sitcom called 'The Harpers,' starring him and Jon Cryer. We thought that was funny too."
On Tuesday, Charlie hinted that he wouldn’t be on the show, tweeting, “Attention World: If you're looking for my much anticipated cameo on network TV, you'll have to check out "The Goldbergs" Wed Feb. 25th on ABC! I go where the love is. C #OfCourseI'mNot.”