LAURA J. DOWNEY
02/05/2007 at 01:00 AM EST
>He's starred on the big screen in everything from the highbrow (The Painted Veil) to the lowbrow (the Scream trilogy), but a TV series? That's new for Schreiber, 39, whose real life role is playing boyfriend to Naomi Watts
. But joining the CSI
cast was a no-brainer: "I am a fan," he's said about taking the gig. "How could I say no?"