The series contains several references to The Wizard of Oz (1939), all of which are tied to the military group OZ. The character Dorothy Catalonia is named for Dorothy Gale, the emblem for the Specials (OZ's cover identity) is a profile of the Tin Woodsman's head, the Romefeller Foundation (OZ's sponsors) uses a lion for its symbol, and in episode 35 an OZ pilot uses the call sign "Scarecrow 5".