While it's still not known exactly how Steve Carell will depart from The Office, I'm guessing his exit might have something to do with the Christmas "Holly" arriving in Scranton.

On tonight's episode, Holly Flax (Oscar nominee Amy Ryan) will make her long-awaited return to Michael Scott's Dunder Mifflin branch. Flax, who's scheduled for eight episodes, will be filling in for Toby once again. (Scott's nemesis will be away on a leave of absence.)

So will Holly finally dump her Nashua boyfriend? Will she forgive Michael for the herpes scare? Tune in!