15 Things You Didn't Know About Grey's Anatomy

1. One of the twins who play Sofia Robbin Sloan Torres' real name is Sara after Sara TV mom Sara  Ramirez.

2. The actor who starred as George O'Malley, T.R. Knight was a groomsman at Katherine Heigl's (Isobel Stevens) wedding.

3. In real life Justin Chambers (Alex Karev) has five children. 4 girls names Isabella, Maya, Kaila, Eva and a boy named Jackson.

4. Grey's Anatomy was originally going to be called Complicated.

5. Sandra Oh (Christina Yang) originally auditioned for the role of Miranda Bailey.

6. Isaiah Washington (Preston Burke) originally auditioned for the role of Derek Shepherd.

7. Ellen Pompeo (Meredith Grey) didn't know that Dr. Shepherd was married until filming the season finale of season 1.

8. A real program was printed up for George O'Malley's funeral.

9. When Arizona Robbins lost her leg in the season 8 finale, Jessica Capshaw walked on a prosthetic leg with her real leg tied behind her. The editors then digitally erased any overlap.

10. The names written on the OR board are all actually names of Grey's crew members.

11. Grey's uses a "colour-blind" casting technique. This means that each role is cast without the character's race being pre-determined, resulting in a racially diverse ensemble cast and keeping with Shonda Rhimes' vision of diversity.

12. They often use real cow organs during the surgery scenes.

13. Isaiah Washington (Preston Burke) allegedly assaulted cast member Patrick Dempsey (Derek Shepherd). Reports began circulating that during this fight, Washington grabbed Dempsey by the throat and said, "I'm not your little faggot like T.R. Referring to fellow homosexual cast member T.R. Knight (George O'Malley). It is said this is why he was let go from the show.

14. Meredith Grey's childhood home is a real home in Seattle.

15. The actress who plays scrub nurse Bokey is a real-life retired scrub nurse and has appeared in countless episodes without ever speaking a single word.