Missionary: Impossible When Homer fails to give money he promised over the phone, he is forced by PBS stars to flee the country. He becomes a missionary on a small tropical island, where he introduces the natives to casino gambling. Details Casts Title Missionary: Impossible Genres Family Animation Comedy Release Date 2000-02-20 Episode Runtime 00 Hours 22 Minutes Season Number 11 Episode Number 15 Production Companies Gracie Films, 20th Century Fox Television, 20th Television Animation, 20th Television Dan Castellaneta Homer Simpson / Abe Simp? Julie Kavner Marge Simpson / Patty Bo? Nancy Cartwright Bart Simpson / Nelson Mu? Yeardley Smith Lisa Simpson (voice) Hank Azaria Moe Szyslak / Chief Wigg? Harry Shearer Ned Flanders / Mr. Burns?