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
Planet of the Apes of the Apes: The Forbidden Zone". Malibu also published two one-shot comics, "A Day on the Planet of the Apes" and "Planet of the Apes: Sins of the Fathers", a prequel story to the original film; a trade paperback collecting the first four issues of the main series, titled "Monkey Planet"; and reissues of stories from Marvel's earlier "Apes" series. Gold Key Comics, Dark Horse Comics, and Boom! Studios have also produced "Planet of the Apes" comic books. The Boom! releases include crossovers with other properties: 2014's "" and 2017's King Kong story "Kong on the Planet of the Apes."