An APA talent agency spokesman for Weller said Monday the actor's role is a principal one in the film, but details were being kept under wraps.
Weller's sci-fi credentials include the "Robocop" films and the TV series "Odyssey 5." He has guest-starred on shows including "Dexter," "Fringe" and "Psych."
His directing credits include "Monk" and the TV movie "Elmore Leonard's Gold Coast."
The second "Star Trek" film will include the return of stars Chris Pine and Zachary Quinto. The film is set for a May 2013 premiere.