Breaking an agonizing silence, Charlie Sheen has returned to Twitter after a month-long absence.
But don't look for any proclamations regarding tiger blood, à la last March, when he first signed onto the social media service.
Also read: Charlie Sheen's "Anger Management" Likely to Get 90-Episode Pick-Up, Lionsgate Says
Sheen blew the dust off his Twitter account Tuesday to promote his father Martin Sheen's guest appearance on Thursday's episode of Charlie's FX sitcom "Anger Management."
"It's on! My pop guest stars Thursday on Anger Management," Charlie tweeted. "Watch my dad show up as my dad 9:30p on FX. Best yet!!"
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He also linked to a photo of him with his father laughing it up on the set of the show.
The elder Sheen will play the father of Charlie's therapist character, Charlie Goodson.
Prior to Tuesday's plug, Charlie had last tweeted July 13, offering the cryptic message, "Reach for the stars everyone. Dogspeed cadre. C out."
Last week, Lionsgate executives said that "Anger Management," which has averaged 3.4 million total viewers through its first seven episodes, will likely get its full 90-episode order from FX after its 10-episode trial run is through.