Robot (Lost in Space) arms. The Robot was performed by Bob May in a prop costume built by Bob Stewart. The voice was primarily dubbed by Dick Tufeld, who was also the series' narrator, and Jorge Arvizu for the Spanish dubbing. The Robot was designed by Robert Kinoshita, who also designed "Forbidden Planet"'s Robby the Robot. Robby appears in Lost in Space episode #20 "War of the Robots" and in episode #60 "Condemned of Space". The Robot did not appear in the unaired pilot episode, but was added to the series once it had been greenlit. Initially, the bellows-covered legs were articulated, and were
Robby the Robot "The Thin Man", "Columbo", "The Addams Family", and "Lost in Space" where he battles The Robot. While Robby's appearance was generally consistent, there were exceptions. The original Rod Serling incarnation of "The Twilight Zone" - which was substantially filmed at MGM Studios - made extensive use of props and costumes originally created for "Forbidden Planet", including Robby. The Season 5 episode "Uncle Simon" (1963) featured Robby, although his appearance was considerably different, combining the familiar body with an alternative head. According to Robby's current owner, director William Malone, the head used in this episode was a prototype created during Robby's