Grey's Anatomy has been wild in 2015!

Ellen Pompeo Explains Change In Character's Hair From 'Grey's Anatomy' Last Season & Now

There have been many shocking moments, some of which have been the very best things to happen on the show in recent seasons.

We're feeling reflective since it's the end of the year so we're going to share these top shocking moments with you below.

'Grey's Anatomy' Star Martin Henderson Says He's Not A McDreamy Replacement!

Dr. Derek "McDreamy" Shepherd Dies
In Season 11 things were all sorts of bumpy for Derek's (Patrick Dempsey) marriage with Dr. Meredith Grey (Ellen Pompeo) and more than enough rumors circulated that Dempsey would exit from the series, but nobody expected such a tragic death of a generally beloved character no matter how many times he messed things up with Meredith.


Dr. Penny Blake (One Of The Doctors That Couldn't Save Derek) Starts Dating Dr. Callie Torres & Begins Working At Grey Sloan Memorial Hospital
Wow! That's a lot to stomach and we're not even Meredith! It's clearly been a struggle for Meredith to get along with Penny (Samantha Sloyan) regardless of her dating her friend Callie (Sara Ramirez) since what happened with Derek lingers in the back of her mind.


Dr. Alex Karev Proposed To Dr. Jo Wilson
Alex (Justin Chambers) and Jo (Camilla Luddington) have been dealing with a lot of relationship woes since Jo feels under appreciated especially given Alex's relationship with Meredith.


He recently popped the question to Jo, but will she accept?

Dr. Jackson Avery & Dr. April Kepner Rekindled Their Spark (Kind Of)
Jackson (Jesse Williams) and April (Sarah Drew) have been another Grey Sloan couple struggling in major ways. Their problems are far from fixed, but will they actually attempt to mend their relationship instead of just sleeping together for amazing sex?


Dr. Owen Hunt Has A Sister?
Owen (Kevin McKidd) has beef in the hospital with a new staffer, Dr. Nathan Riggs (Martin Henderson), and it turns out it has something to do with his sister that nobody knew about previously. There is still so much more to be said about this.

So many other shocking moments occurred this year on the medical drama, but these are definitely the best ones, right?

Grey's Anatomy returns to ABC on Feb. 11 at 8 p.m. ET.