Frankenstein, Jr. and The Impossibles Boy genius Buzz Conroy’s powerful robot, Frankenstein Jr. cranks into action along with a group of crime fighting superheroes disguised as a beatnik rock group, The Impossibles, making hot-rockin’ musical justice! Details Casts Videos Galleries Posters Season Lists Title Frankenstein, Jr. and The Impossibles Genres Animation Comedy First Air Date 1966-09-10 Last Air Date 1967-01-07 Episode Runtime 00 Hours 00 Minutes Total Season(s) 1 Total Episode(s) on All Seasons 54 Runtime Production Companies Unknown John Stephenson... ... Don Messick... ... Paul Frees... ... Ted Cassidy... ... Hal Smith... ... Dick Beals... ... Frankenstein Jr. and the Impossibles (Opening) (Opening Credits) Frankenstein Jr and the Impossibles (Opening Credits) Original Size (2000x1124) Original Size (1280x720) Original Size (1280x720) Original Size (1007x1416) Original Size (500x750) Original Size (500x750) Original Size (500x750) Original Size (680x1000) Original Size (680x1000) Original Size (680x1000) Season 1 54 Episode(s) 1966-09-10