'New Year's Eve' RSVP List Grows: Alyssa Milano's In

Who's the boss of 'New Year's Eve'? Yes, Garry Marshall is the director, but we want to know Who's the Boss? Okay, okay all joking about '80s sitcoms aside, this lengthy set-up is to tell you that Alyssa Milano is the latest actress to join the rom-com's jumbo cast, according to Variety.

The "Hall Pass" star will play the role of a hospital nurse keeping holiday company with an old, lonely patient. Could she be the counterpart to Robert De Niro's bitter old sickie? We'll have to see!

Alyssa's casting isn't the only "New Year's Eve" news making the rounds today. When MTV News spoke with Garry last year, he said he was trying to lineup a Justin Bieber cameo for the film. But, sadly, E! News is reporting that scheduling conflicts may keep the Biebs from making an appearance. I guess there will be one more lonely girl this New Year's.

Nonetheless, the list of big names who've joined this big film keeps on growing—the casting count is nearly at 20, with (deep breath!) Katherine Heigl, Ice Cube, Josh Duhamel, Ryan Seacrest, Seth Meyers, Jessica Biel, Zac Efron, Sarah Jessica Parker, Lea Michele, Sofia Vergara, Ashton Kutcher, Michelle Pfeiffer and Hilary Swank.

When will this cast stop growing? Ever? NEVER? Leave your predictions in the comments!