"Who We Are" is the eighth episode of the fifth season of Private Practice and the 84th produced episode of the series. It is also the 241st produced episode of the Grey's Anatomy franchise. It was broadcast on November 17, 2011.
When Amelia returns after disappearing for 12 day bender with her new boyfriend, the doctors of Seaside Wellness try to push her towards sobriety by holding an intervention. As Amelia lashes out at her friends one by one; calling Addison's quest for a child into question in lieu with her past, bringing Violet and Pete's issues to the surface and reminding Charlotte of her tragic past, they battle with the ethical dilemma of feeding Amelia's addiction in order to get her to listen.
- "Ain't Nobody" - Mary J Blidge
- "Need Someone" - Mary J Blidge
- "25/8" - Mary J Blidge
- This episode features the first depiction of Derek and Amelia's father's death. His death was first referenced in "Let The Angels Commit" and the events depicted in the flashbacks were first discussed in "Sympathy For The Devil"
- Amelia references Addison's abortion of Mark's child before she left New York for Seattle to win Derek back. ("Six Days, Part 2")