[s3e11] Nikki Heat -

: At Beckett's invitation, "B-movie" actress Natalie Rhodes (played by Laura Prepon ) joins the team to research her role. Initially dismissed by Castle as a shallow choice, Natalie surprises everyone with her intense method acting.

Fans often note that the episode aired out of its intended chronological sequence; Castle is still in a relationship with Gina here, even though they break up in the subsequent episode, "Poof, You're Dead".

: Despite a misunderstanding involving Natalie that causes a rift with his girlfriend Jenny, Detective Ryan ultimately proposes to her at the precinct at the end of the episode, and she accepts. Episode Details Cast & Guest Stars : Laura Prepon as Natalie Rhodes. Thomas Calabro as Scott Donner. Trivia :