Hotel | [s4e8] Heartbreak

The records also mistakenly list Castle with brown eyes, though Nathan Fillion famously has blue eyes.

: Richard Castle (Nathan Fillion) famously appears in an Elvis impersonator costume, complete with an elaborate hairstyle. Easter Eggs : [S4E8] Heartbreak Hotel

: Sam's ex-wife eventually confesses to the murder. She had been forced at gunpoint to sign over a co-owned building to Sam and used the theft as cover to kill him. Subplots : The records also mistakenly list Castle with brown

: The victim, Sam Siegel (a nod to real-life mobster "Bugsy" Siegel), was being blackmailed after $10 million was stolen from his casino. She had been forced at gunpoint to sign

: Beckett stays in New York to work with Captain Gates, while Castle, Ryan, and Esposito head to Atlantic City. It’s revealed that the casino's concierge and a security worker stole the money as leverage to help the concierge’s parents.

: About seven minutes into the episode, Ryan is seen checking his watch twice in identical motions due to a editing cut.