STAGE TUBE: Sneak Peek - Adam Baldwin Guest Stars on Tonight's CASTLE

Adam Baldwin guest stars on tonight's episode of the ABC drama CASTLE entitled "Headhunters". With tensions rising between Castle and Beckett, Castle finds himself a new partner - Detective Ethan Slaughter (Baldwin), a tough and colorful cop from the city's gang unit. But Castle gets more than he bargained for when Slaughter shows him a grittier side of police work that puts Castle in the line of fire like never before. The episode airs tonight, 10:01-11:00 p.m., ET on the ABC Television Network.

CASTLE stars Nathan Fillion as Richard Castle, Stana Katic as NYPD Detective Kate Beckett, Susan Sullivan as Martha Rodgers, Molly Quinn as Alexis Castle, Penny Johnson Jerald as NYPD Captain Victoria Gates, TAMALA JONES as Medical Examiner Lanie Parish, Jon Huertas as NYPD Detective Javier Esposito, and Seamus Dever as NYPD Detective Kevin Ryan.

Guest Cast: Adam Baldwin as Detective Ethan Slaughter, Michael McGrady as Brian Reilly, Michael Dorn as Dr. Carter Burke.

"Headhunters" was written by Alexi Hawley and directed by John Terlesky.

For more information on "Castle," visit ABC.com/Castle

Get a sneak peek at tonight's episode below!