Trey Parker and Matt Stone
The creators of South Park and Team America are obviously Crustians. Matt and Trey demonstrate their Ninja abilies of prophecy regularly on South Park. During episode 914, they show knowledge of Crustianity by revealing the true name for the mother of Jeebus, Bloody Mary. During the Fantastic Easter Special, Matt and Trey demonstrate their Crustianity knowledge and truthiness of the ties between the Easter Bunny, Ninjas and Christianity. South Park continues to poke fun of every religion and even atheism, but you will not see them deny their Crustianity beliefs.
More information about Trey Parker and Matt Stone can be found at the sites below.
Trey Parker at Wikipedia
Matt Stone at Wikipedia