Jamie Dornan's fans, chill.

A question has been asked many times over recently if Jamie Dornan (think "50 Shades of Grey") will return to join the "Once Upon A Time" cast on it's 100th episode.

"Once Upon A Time" is pooling its old characters together for the landmark 100th episode and since Peter Pan (Robbie Kay), Cora (Barbara Hershey), Cruella de Vil (Victoria Smurfit) and Sidney Glass (Giancarlo Esposito) will be returning, follows that Dornan's Sheriff Graham will also be in tow, together with Sebastian Stan's Jefferson. Unfortunately, it's not the case. Entertainment Tonight asked "Once Upon A Time" co-creators Edward Kitsis and Adam Horowitz for the scoop abut Dornan's return but they were told it is unlikely.

"You know, I would not hold your breathe for either of those characters," Kitsis said. "Unfortunately, those two [actors] are very hard to pin down."

It is indeed true because Dornan has Fifty Shades of Grey and Stan tied up with Marvel Cinematic Universe.

He added, "When you see where were going, you'll understand why. But I would say that for us it is the 100th episode, so we want to celebrate the show and bring back some familiar faces that we've met along the way."

On the same note, ET Online reports that the 100th episode of "Once Upon A Time" will be Hatter and Huntsmen-free but fans will still have something to look forward to as the story  goes back to a trip down memory lane.

"There are some villains and there are some non-villains in there too," Hororwitz said when ET Online contacted him.

"Once Upon a Timeairs Sundays at 8 p.m. ET/PT on ABC.

It may be sad for the fans not to see Dornan's return at "Once Upon A Time" but at least they would comforted by the fact that "50 Shades of Grey" will return to the big screen again although it is yet to be known exactly when.