Captain Victoria Gates (Penny Johnson)Captain Victoria Gates is a captain in the NYPD assigned to the 12th Precinct, who replaced Roy Montgomery.She is a classic, no-nonsense straight arrow, doing everything by the book. This is due in part to her dedication to justice but also her own political aspirations to ascend through the ranks at One Police Plaza.Gates made her career as a detective in Internal Affairs, earning the nickname Iron Gates. Like Beckett, she was one of the youngest women to make detective.Gates is not a big fan of Castle's involvement in police work but understand the need to tolerate it given Castle's friendship with the Mayor.