'Grey's Anatomy's' Owen Hunt Spoilers Revealed

"I'm more interested in when I'm going to find out!" he joked.

Design & Trend is giving hints that that issues are all about Dr. Owen Hunt's sister, hinting that she had a relationship with Nathan Riggs in the past. Something happened between Owen's sister and Riggs that caused them to part ways.

"That's why Owen is in such a state over this. They were very tight," he said.

It is still unclear whether or not Owen's sister will be a new character in the show.

"Nothing definite about the fate. All we know is there was something in our past -- some collective shared event -- involving Owen's sister that was tragic for the both of them," he said.

"The honest answer is I don't know exactly. The way they write, we don't get the scripts until we shoot them, so as much as I nag them to know all of my backstory, they don't reveal any of that. We've shot a few episodes since the one that airs tonight. It hasn't focused too much on the details, all we know is there was something in our past — some collective shared event — involving Owen's sister that was tragic for the both of them."

"That's what I would assume. That definitely seems to be the assumption, but the details are very sparse at this point. They were clearly somehow connected through family and some relationship with the sister."

But is there any truth to the thought that Dr. Nathan Riggs will be the next love interest for Dr. Meredith Grey, and so he will be McKiwi?

"It's bumpy. It's rocky. Though Owen doesn't give too many details, we know that his resentment runs really deep. He does not paint Riggs as a sympathetic character at all. Based on her loyalty to Owen, Meredith chooses to side and be loyal to him. There's not a lot of love lost there, and that frustrates Riggs because he has a different perspective on the events and feels that he's been unjustly tarred."

What do you think is the conflict between Owen Hunt and Nathan Riggs on Grey's Anatomy?

[Photo by Jason Kempin/Getty Images]