Fringe returned with a new episode this week, following a hiatus of almost two months.

In his latest column for Entertainment Weekly, Michael Ausiello responds to a pair of questions about a pair of exciting guest stars on the show.

• Will Ari Graynor remain on the series for the rest of this season?
• For how long will Leonard Nimoy appear as William Bell?

As for the answer: Graynor is sticking around for a few more episodes, during which viewers will learn more about her estranged hubby.

Regarding Nimoy: He'll appear in one scene in the May 12 season finale, and will return next season for an additional three episodes.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.