Here’s proof that the TV biz hasn’t completely closed up shop for the holidays: L Word and 24 alum Mia Kirshner has just inked a deal to join the cast of The Vampire Diairies on a recurring basis, sources confirm to me exclusively.

Kirshner will be playing the role of Isobel, the sweet-yet-dangerous wife of Matt Davis’ history teacher, Alaric.

The actress will make her debut in the Jan. 21 episode, which, come to think of it, has already been shot. How will VD boss Kevin Williamson pull that one off? “Ever hear of an 11th hour reshoot,” sniffs an insider. “That’s what they’re doing.” There’s no reason to be nasty about it.

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