By Michael Ausiello
April 05, 2010 at 10:24 PM EDT

Image Credit: Frank Micelotta/Getty Images; Inset: Justin Stephens/FoxThis just in from Fringe‘s Overthereland: Dirty Sexy Money‘s Seth Gabel is joining the cast as the lead Fringe investigator in the alternate universe, sources confirm to me exclusively.

Gabel’s detective will debut in the show’s two-part finale (airing May 13 and May 20) and could return on a recurring basis next season.

Back in January, consulting producer Akiva Goldsman revealed that much of the finale would be set “over there.”

“We’re trying to do the last two episodes as a singular event, a little bit more movie-like,” he added. “It’s really one big story. We’re approaching it like a mini-feature. It’ll have a singular narrative drive.”