An investigation into a vampire fetish community eventually wrapped up with Rick Castle throwing an epic Halloween bash for all of his friends. Castle actually wore two costumes in Castle Season 2 Episode 6, “Vampire Weekend” The first was from Nathan Fillion’s cult favorite Firefly character Capt. Mal Reynolds but for the actual party he dressed as one of his favorite authors, Edgar Allen Poe. Our favorites were Lanie as Cat Woman and Martha as Cruella de Vil.

Detective Ethan Slaughter returns. What kinds of trouble will he get Rick Castle into this time?

"They want me dead." That's what this talk show host whispers to Castle during a commercial break.

This is Kelly Carlson on Castle. Her characters gets cozy with the show's star.

Tom Bergeron guest stars on Castle in the role of a talk show host. But he isn't long for this world.

This case is right up Castle's alley. Take a look at him in a scene from "The Mistress Always Spanks Twice."

Castle and Beckett deal with a dead baseball player on the episode "Suicide Squeeze."

Rick is planning a surprise for Beckett on their first wedding anniversary on Castle. "The Last Seduction" is the seventh episode of the show's eighth season.

Rick ends up on stage when he and Beckett investigate the murder of a cruise ship entertainer on Castle. "Mr. & Mrs. Castle" is the eighth episode of the show's eighth season.

Summer Glau will be guest starring on a Season 8 episode of Castle next to former Firefly costar Nathan Fillion.

Can Castle and Beckett keep their reconciliation a secret from their friends and coworkers on Castle? "Tone Death" is the ninth episode of the show's eighth season.

We love Richard Castle. It helps when he's played by the fantastic Nathan Fillion.