<P> 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 . </P>
<P> 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 . </P>
who built the robot in lost in space
who built the robot in lost in space
Bob Stewart
Bob Stewart