"Castle" stars Nathan Fillion as Castle, Stana Katic as Beckett, Molly Quinn as Alexis, Susan Sullivan as Martha, Monet Mazur as Gina and Ruben Santiago-Hudson as Capt. Montgomery. Produced by ABC Studios, Andrew Marlowe serves as executive producer/writer along with executive producers Laurie Zaks, Armyan Bernstein and Rob Bowman. (ABC/CRAIG SJODIN)