Costumed patients create a challenge for the doctors; Derek and Ben work on a new surgical technique; Richard asks a resident to perform his next surgery, angering Bailey.
Episode rating
Cast of episode
67
11
8
4
3
2
1
1
1
- Dr. Jo Wilson
- Dr. Meredith Grey
- Dr. Cristina Yang
- Dr. Shane Ross
- Dr. Derek Shepherd
- Dr. Ben Warren
- Dr. Alex Karev
- Dr. Arizona Robbins
- Dr. Callie Torres
- Dr. April Kepner
- Dr. Jackson Avery
- Dr. Leah Murphy
- Dr. Miranda Bailey
- Dr. Stephanie Edwards
- Dr. Owen Hunt
- Dr. Richard Webber
- Marge Walker
- Victor Brown
- Ghost Lady
- Mr. Davis
- Philip Walker
- Tuck
- Nurse Ruth
- Nurse Gloria
- Paramedic Grace
- Bartender
- Zombie
- Paramedic #2
- Nurse
- Dr. Emma Marling