I Will Follow You Into the Dark
Show: Grey's Anatomy --> Season: 5 - Season 5
AirDate: 3/12/2009
Runtime: 43
Voting: 7.8 (8)

Overview: Derek decides to quit after learning that more of his patients have died than survived; Izzie's interns make an unsettling discovery about "Patient X."
Jessica Capshaw
Arizona Robbins
Loretta Devine
Adele Webber
Gloria Garayua
Intern Graciella
Wendy Hoopes
Tricia Shelley
Erin Cahill
Megan Shelley
Michael Rady
Michael Shelley
Candice Afia
Intern Laura
Nicole Cummins-Rubio
Paramedic Nicole
Molly Kidder
Intern Megan
Brandon Scott
Ryan Spalding
Joe Williamson
Intern Pierce
Winston Story
Intern Leo
Amrapali Ambegaokar
Intern Dani
Tymberlee Hill
Intern Claire
Susane Lee
Beth Dearborn
Phil Abrams
Dr. John Nelson
B.K. Cannon
Girl Band Geek
Mark Saul
Intern Steve
Marcus McGee
Boy Band Geek