S04E15Grey's Anatomy season 4 episode 15: Losing My Mind
Aired 15 May 200843 minRated TV-14
Where to watch Grey's Anatomy Season 4 in Australia
Grey's Anatomy season 4 is streaming in Australia on Disney+ (subscription, listed for the whole show).
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Availability checked 16 November 2026.
What happens in “Losing My Mind”
Dr. Wyatt refuses to let Meredith give up on therapy. Alex learns something else about Rebecca. The Chief wants Erica to perform a daring surgery. Christina continues to act strangely.
Episode summary: TMDB.
Before you watch
- It is episode 15 of 16 of season 4, so watch episodes 1 to 14 first.
- It runs about 43 minutes.
- Directed by James Frawley, written by Debora Cahn.
- TMDB users rate it 7.2 out of 10 (19 votes).
Grey's Anatomy trailer
The official trailer for the series (no preview of this episode has been published).
Play video: Grey's Anatomy trailer
Cast and crew of this episode
- Director
- James Frawley
- Writer
- Debora Cahn
- Guest stars
- Brooke Smith as Erica HahnCress Williams as Tucker JonesAmy Madigan as Katharine WyattLauren Stamile as Nurse RoseApril Grace as Greta's SisterJeffrey D. Sams as Andre BarrettPaul Dooley as Dr. Walter TapleyRegina Taylor as Greta
Credits: TMDB.
More from Grey's Anatomy Season 4
Every episode of Season 4Grey's Anatomy episode guide
Episode names, air dates, runtimes, stills and ratings: TMDB. Air dates are the first broadcast anywhere; where it streams is our daily Australian check.