Grey's Anatomy Season 4 Episode 15
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.
Guest Stars
Brooke Smith
Erica Hahn
Cress Williams
Tucker Jones
Amy Madigan
Katharine Wyatt
Lauren Stamile
Nurse Rose
April Grace
Greta's Sister