'One Tree Hill's' Austin Nichols cast in Showtime's 'Ray Donovan' pilot

As "One Tree Hill" draws to a close, its stars are beginning to find new homes in the television landscape. Zap2it is thrilled to exclusively report that "OTH" star Austin Nichols has landed a role in Showtime's "Ray Donovan" pilot, alongside Liev Schreiber in the title role.

Ray Donovan is a professional "troubleshooter" in LA, called on to dig the city's wealthiest, most elite clientele out of their various messes. Nichols will play Tommy West, an A-list movie star who seeks Ray's help when he finds himself in a tough bind.

Nichols joins a formidable cast full of star names -- including Kate Moennig as Ray's colleague Lena, Jon Voight as Ray's father Mickey, and Elliott Gould as Ray's mentor Ezra.

He's not the first "Tree Hill" alum to land a plum TV pilot role. On-screen wife Sophia Bush is starring in "Partners," a CBS sitcom from the creators of "Will & Grace," and Robert Buckley will appear in supernatural thriller "666 Park" for ABC.