Aliens debuting in the year 1956. 1955 <--> 1957 Trending pages Krell Venusian (It Conquered the World) Coluan Venusian (Supersonic Saucer) All items (15) # A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Other A Akko Grain Alien (The Trollenberg Terror) C Coluan G Gnome (The Spaceman's Van Gogh) H Hussir K Krell P Pairan Professor (Jackpot) S Sento Plant T The Giant Polyp Ttornot Tree V Venusian (It Conquered the World) Venusian (Supersonic Saucer) W Wild Human Z Zird Categories: Fictional Aliens by Year of Debut Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.