‘Grey’s Anatomy’: Is Martin Henderson the New McDoctor? (Exclusive Video)

The new series regular is playing Dr. Nathan Riggs, who seems to have a bad history with Kevin McKidd's Owen Hunt.

There's a new doctor checking into Grey Sloan Memorial, but not everyone on staff is happy about it.

During last week's episode of ABC's Grey's Anatomy, Martin Henderson (The Red Road, Shondaland's Off the Map) arrived as Dr. Nathan Riggs — a cardiothoracic surgeon

who worked with April during her last overseas tour. When he arrived at the hospital, it was under special circumstances and for one specific case. But, in a clip from Thursday's "Something Against You" episode, the new McDoctor seems to be checking in permanently and it isn't sitting well with Owen (Kevin McKidd).

In the clip above, exclusive to THR, Owen lashes out at Bailey (Chandra Wilson) for hiring what he calls "a complete stranger."

Clearly the duo have some bad blood. While a calm and cool Bailey offers to talk it out with Owen, he instead turns to Riggs — who admits that the duo "go back a bit" — and says, "What's done is done, right?!"

Henderson joined Grey's in June as a series regular. The gig reunites Henderson with his former Off the Map co-star Jason George (Ben), who also was promoted to regular for season 12.

Will Riggs' be able to stick around to become the hospital's newest McDoctor? What do you think happened between them? Leave your McNickname suggestions the comments section, below. Grey's Anatomy airs Thursdays at 8 p.m. on ABC.

Grey's Anatomy

Lesley Goldberg