Joshua Bitton, Nathan Fillion, Seamus Dever, Jon Huertas Photo

Joshua Bitton, Nathan Fillion, Seamus Dever, Jon Huertas Photo

New detective Sully desperately wants to be part of the team.
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Alicia Logano Guest Stars

Alicia Logano Guest Stars

Alicia Logano guest stars as an accused murderer who takes hostages and will only speak to Castle. "Number One Fan" is the fourth episode of the show's sixth season.
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The Negotiator Arrives

The Negotiator Arrives

Rick arrives to help negotiate the release of hostages on Castle. "Number One Fan" is the fourth episode of the show's sixth season.
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More Hostages

More Hostages

Can these hostages count on Rick to help set them free on Castle? "Number One Fan" is the fourth episode of the show's sixth season.
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The Hostages

The Hostages

Hostages are taken and an accused murderer insists on speaking to Castle. "Number One Fan" is the fourth episode of the show's sixth season.
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Is the Calvary Coming?

Is the Calvary Coming?

Is the calvary coming to rescue Rick and the hostages on Castle? "Number One Fan" is the fourth episode of the show's sixth season.
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Is Castle Getting Through?

Is Castle Getting Through?

Rick tries to convince a fan of his to let her hostages go on Castle. "Number One Fan" is the fourth episode of the show's sixth season.
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An Armed Suspect

An Armed Suspect

Can Rick convince an armed hostage taker to release her hostages on Castle? "Number One Fan" is the fourth episode of the show's sixth season.
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Things Get Tense for Castle

Things Get Tense for Castle

Things get tense for Rick when he's called in to get an accused murderer to release her hostages on Castle. "Number One Fan" is the fourth episode of the show's sixth season.
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Convincing a Fan

Convincing a Fan

Can Rick convince a fan of his to let her hostages go on Castle? "Number One Fan" is the fourth episode of the show's sixth season.
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Keeping Things Calm

Keeping Things Calm

Rick tries to keep things calm when he gets called into a hostage situation on Castle. "Number One Fan" is the fourth episode of the show's sixth season.
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Talking Her Down

Talking Her Down

Rick tries to talk down a tense situation on Castle. "Number One Fan" is the fourth episode of the show's sixth season.
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Castle Season 6 Episode 4 Quotes

Kate: I might as well apply to become a mall cop.
Castle: Ooh, you would look great on a Segway.

I don't know what to do about my life.

Kate