The Top 10 Most Nefarious Mustaches of All Time

1. Sinestro

2. Hitler

3. Snidely Whiplash

4. Dick Dastardly

5. Boris Badenov

6. Ming the Merciless

7. Daniel Day Lewis (as Daniel Plainview and/or Bill the Butcher)

8. Van Pelt

9. Joseph Stalin

10. The Dread Baron (who is coincedently Dick Dastardly's brother)

Infinity-Symbol. Old Timey Bryan 'Pugilism' Glynn

Honorably Mention:

Jim Nausedas with a Mustache

Cesar Romero (as the Joker)
Wario
Wa-Luigi