About:
Kathleen Erin "Kate" Walsh (born October 13, 1967) is an American film and television actress, currently known for her role as Dr. Addison Montgomery on the ABC dramas Grey's Anatomy and Private Practice.

• Known For
• 
  Scary Movie 5
  as
  Self
• 
  Peppermills
  as
  Lena
• 
  Legion
  as
  Sandra Anderson
• 
  Comedy Central Roast of Justin Bieber
  as
  Self
• 
  Wake Up, Ron Burgundy: The Lost Movie
  as
  Sue