Robby was designed by members of the MGM art department and constructed by the studio's prop department; The design was developed from initial ideas and sketches by production designer Arnold "Buddy" Gillespie, art director Arthur Lonergan, and writer Irving Block. These concepts were refined by production illustrator Mentor Huebner and perfected by MGM staff production draughtsman and mechanical designer Robert Kinoshita.Hagerty 2008
