Posse Impossible Details Casts Galleries Posters Season Lists Title Posse Impossible Genres Animation Comedy Crime Western Kids First Air Date 1977-09-10 Last Air Date 1977-12-03 Episode Runtime 00 Hours 06 Minutes Total Season(s) 1 Total Episode(s) on All Seasons 13 Runtime 6 Production Companies Hanna-Barbera Productions William Woodson... Sheriff... Daws Butler... Stick / Big Duke... Chuck McCann... Blubber... Original Size (1280x720) Original Size (680x1000) Original Size (680x1000) Season 1 13 Episode(s) 1977-09-10