The character of William Bell has come a long way in four seasons of Fox's Fringe, and acting legend Leonard Nimoy says his latest persona (probably) isn't quite finished yet. So what can we expect from the maddest scientist of all in the show's fifth and final season?
Nimoy said he was intrigued by William Bell's story arc at the end of season four, which enticed him to come back for a surprising (and awesome) cameo as the puppet master behind the season's Big Bad.
"It was explained to me that we're opening up a whole world, and William Bell is being recreated as something else. He's in another universe and has taken on other characteristics. There were challenges in the character itself that were attractive to me. I could play aspects that I haven't played in a long time, so it was very welcoming to me."
If J.J. Abrams' plan for William Bell is as exciting for season five, Nimoy said he would definitely consider coming back for the final year—just to see how things evolve for the less "rational" version of Bell.
"It will depend on what they have in mind for the character. There are a lot of issues that have to be dealt with, but we'll be talking," he said. "The William Bell character started as a very intelligent and rational character. I think he's still very, very intelligent, but I'm not quite so sure that he's rational anymore."
Sound off: Would you like to see Nimoy back for Fringe's final 13 episodes?