03/24/2012 03:16 pm ET

Jason Alexander To Guest Star On 'Two And A Half Men' And More Casting News

Jason Alexander is jumping on the "Two And A Half Men" bandwagon.

Taking a page out of Kathy Bates' book, who was recently cast as the ghost of Charlie Harper, Alexander will guest star on an upcoming episode of "Two And A Half Men."

"Looking forward to filming an episode of Two and a Half Men next week," the former "Seinfeld" star recently tweeted. Details regarding the actor's role on the show have yet to be revealed.

In other casting news ...
Rus Blackwell joins Alan Ball's "Banshee." The "Burn Notice" actor is set to appear in the Cinemax drama. Blackwell will play Gordon, a district attorney. [TVLine]

Robin McLeavy becomes series regular on"Hell on Wheels." Her character, Eva, based on the life of Olive Oatman, was last seen in the season finale, parting ways with Common's character, Elam. [THR]

Jason George ("Grey's Anatomy"), Brett Tucker ("Spartacus: Vengeance") join ABC's "Mistresses." Tucker will play the husband of Alyssa Milano’s character, and George will be Milano's extracurricular love interest. [TVLine]