YMMV / Flash Gordon (serial)

• Complete Monster: Emperor Ming the Merciless of Mongo is a cruel tyrant who intends to take Dale Arden as a forcible bride while trying to have the heroic Flash Gordon killed. Willing to let the entire Hawkmen people be wiped out, Ming also intends to destroy the world, returning after a seeming demise to ally with Queen Azura of Mars to destroy Earth again. Returning a final time, Ming poisons the Earth with a plague called the Purple Death to kill the human race.