Cyrus Redblock was a villain in the Dixon Hill holodeck program. In 2364, Jean-Luc Picard, Data and Beverly Crusher were threatened by Redblock and Felix Leech when they were trapped in the holodeck, but were able to convince Redblock and Leech to leave the holodeck. By doing so, Redblock and Leech disappeared. (TNG episode: "The Big Goodbye") When Jean-Luc Picard used the Dixon Hill holodeck chapter The Case of the Missing Heart in 2377, Redblock was abducted by persons unknown. (TNG novel: A Hard Rain)