"Castle" star Nathan Fillion welcomes "The Muppets" to ABC.
A storybook romance!
Castle accepts a career achievement award.
Two Castles are better than one!
Beckett gets a surprising offer.
Castle must slay a demon to survive.
Castle will support whatever path she chooses.
Preview Episode 23: Castle reveals a terrifying secret from his childhood.
"Saturday Night Tonight" spoofs Castle and Beckett!
Castle and Beckett share a dance.
She arrests a murderer on live TV!
Beckett doesn't like an actor's portrayal of her.
Martha's worried about returning to Broadway.
Preview Episode 22: Beckett must question his puppet lawyer.
Preview Episode 22: Carly Rae Jepsen sings "I Really Like You" on Castle.
Mrs. Castle, may I have this dance?
It's going to be a bumpy ride to Heathrow.
There's a snake on the motherflyin' plane!
Castle uses a trick he learned from MacGyver.
They're a father-daughter crime-solving duo!
Alexis saves the day this time.
Preview Episode 21: The Air Marshal is missing and Castle can help.
Castle may not know everything, but he knows enough.
Sometimes Castle goes to a dark place.
Jenkins finally gives Castle answers.
But Castle still doesn't know who shot him.
They used to be friends... before he joined Al-Qaeda.
But Castle proves him wrong.
Preview Episode 20: Was Castle with Chuck Norris?
Watch hilarious bloopers from the set of Castle!
Castle and Beckett weren't supposed to see this.