After setting up Dr. Jekyll and Mr. Hyde to be a potential major storyline in season 6 of Once Upon a Time, their storyline took a every different turn.

Dr. Jekyll reveals that necklace belonged to a woman he cared deeply about, and that's Hyde's way of taunting him. We flash back to Jekyll's world, where we meet a woman named Mary back in his lab.

“The Doctor” is the simple title of this week’s “Once Upon a Time” episode, and had long been a perplexing puzzle to those of us trying to figure out who all of Storybrooke’s residents ...

Once Upon a Time recap: The Doctor A Halloween-themed episode reveals Dr. Whale's true identity -- and no, he isn't Monstro from Pinocchio ...

Dr. Whale’s electrifying identity is finally revealed, as Once Upon a Time opens a whole new door.

So yeah, you guessed it. Dr. Jekyll and Mr. Hyde are now running around as two completely separate people, leaving Hyde with all 24 hours a day to commit to being evil incarnate.

‘Once Upon a Time’: 12 Burning Questions for Season 6 THR takes a deep dive into season five’s unsolved mysteries.

Doctor Who: Once Upon a Time Lord - Official Trailer Witness the incredible adventures of the Tenth Doctor like never-before!

On Once Upon a Time Season 6 Episode 4, Mary Margaret returned to the classroom, and the story of Jekyll and Hyde came to a close. Read on for our full review!

'Once Upon a Time' recap: Season 6, Episode 4 Tell me, princess, now when did you last become a teacher's aide?

Once Upon A Time 2.05 “The Doctor” TV REVIEW Episode 2.05 Writers: Edward Kitsis, Adam Horowitz ...

The end of the fifth season of “Once Upon a Time” came in a two-hour special that took us out of Storybrooke, gave us a new uber villain, gave long speeches to Regina and Henry, and brought a ...