Addison Montgomery of Private Practice. She's become part of a great ensemble cast on the Grey's Anatomy spinoff.

Sam, Charlotte and Addie in a meeting on Private Practice. How will the business thrive with its new roster?

Kate Walsh has really come into her own as the leading lady of Private Practice. She's the best.

Sam and Addison talk things over. Should these two be a couple or remain friends?

Addison's father, known as the Captain, in the December 3, 2009 double episode of Private Practice. We're looking forward to seeing what the episode has in store for us.