Robby the Robot robot designed to care for children. In "Tom Swift on The Phantom Satellite" (1956), it is also the name given to a small four-foot robot designed by Tom Swift Jr., the boy inventor in the "Tom Swift Jr." science fiction novel series by Victor Appleton II. Robby the Robot originated as a character in the 1956 MGM science fiction film "Forbidden Planet". The story centers on a crew of space explorers from Earth who land their starship, the C57-D, on the planet Altair IV, ruled by the mysterious Dr. Morbius. Robby is a mechanical servant that Morbius has designed, built,
Planet of Evil but name, the Id monster from the 1956 MGM feature film "Forbidden Planet"." Howe and Walker also praised the jungle set and the performances of Frederick Jaeger and Ewen Solon, but criticised Prentis Hancock's "poor" portrayal of Salamar. Ray Dexter's assessment of "Planet of Evil" also acknowledged the influence of the 1956 film "Forbidden Planet", which inspired the writers to include an invisible, murderous monster, as well as elements of "Jekyll and Hyde". Reviewing the serial in 1999, literary critic John Kenneth Muir drew attention to similarities between "Planet of Evil" and Ridley Scott's 1979 film, "Alien", in particular the