D'oh Canada Lisa is mistakenly given political asylum in Canada during a family trip to Niagara Falls. Details Casts Title D'oh Canada Genres Family Animation Comedy Release Date 2019-04-28 Episode Runtime 00 Hours 22 Minutes Season Number 30 Episode Number 21 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?