Kryten

Kryten (full name Kryten 2X4B - 523P') is a fictional character in the British science fiction situation comedy Red Dwarf. Kryten's registration code on Red Dwarf is "Kryten additional 001". The name Kryten is a reference to the head butler in the J.M. Barrie play The Admirable Crichton.

In their original plan for the series, Rob Grant and Doug Naylor had specified that there would be no aliens and no robots. Following the success of the first appearance by the Kryten character, Naylor convinced Grant to bring him back.

In the character's first appearance, originally only intended as a one-off, Kryten was played by actor David Ross but the popularity of the character meant that Kryten was introduced as a regular in Series III. The intention was to bring Ross back to play the role, but he was not available at the time and the position was filled by Northampton-born actor Robert Llewellyn, whose performances as Kryten in series III-VIII resulted in even greater popularity of the character. David Ross later returned to voice Talkie Toaster in a series IV episode.