The Seeds of Doom was a serial of Doctor Who that aired prior to 1981. David reminisced that the story began when deadly seed pods belonging to the Krynoids were discovered at the South Pole. (PROSE: Fanboys)
The Confounding Case of the Planetary Prankster • The Pernicious Plots of the Big Game Hunter • The Dangerous Dilemma of the Dream Doorway • Assassin on the Railroads • The Curious Case of the Weirdling Woods
Some categorisation may be based upon conjecture. Real world information should not enter into this. Additionally, a character's role in the DWU can differ from the real world - their placement here is for categorisation.