Mr. Jones is back on Fringe, but Jared Harris, who plays the enigmatic character, said it remains to be seen whether or not he'll return again after tonight's episode, "Ability." (Spoilers ahead!) "He's not a recurring character," Harris said in an interview. "I'm not signed up to a recurring contract. So he's a one-off ..." Who keeps recurring? "Well, it's sort of the way they do it now," Harris said.