'Star Trek' sequel adds Peter Weller to its cast

Peter Weller has joined the cast of J.J. Abrams' "Star Trek" sequel. Just who he'll be playing, though, is an open question.

The news of Weller's casting comes courtesy of Variety, which notes that Abrams and Co. are keeping the details of his role a secret for the time being. He joins fellow newcomers Alice Eve and Benicio del Toro, who's playing the villain in the sequel; most of the 2009 film's cast will return as well.

Weller has sci-fi cred to burn -- see "RoboCop," "The Adventures of Buckaroo Banzai Across the 8th Dimension" and "Odyssey 5" -- and also has a connection to the "Trek" franchise: He guest-starred in a couple episodes of "Star Trek: Enterprise" in 2005.

More recently, Weller has had roles on "Dexter," "Fringe" and "24." He also directed two episodes of "Sons of Anarchy" this season.

The "Star Trek" sequel is set to hit theaters in May 2013.