The Haunted Candy Factory Answering the cries of The Mamas and the Papas singer Cass Elliot, the gang find themselves trying to unmask the green globs who are running amok in her candy factory. Details Casts Galleries Posters Season Lists Title The Haunted Candy Factory Genres Animation Mystery Comedy Kids Family Release Date 1973-10-20 Episode Runtime 00 Hours 40 Minutes Season Number 2 Episode Number 7 Production Companies Hanna-Barbera Productions Don Messick... Scooby-Doo (voice)... Casey Kasem... Shaggy (voice)... Frank Welker... Fred Jones (voice)... Nicole Jaffe... Velma (voice)... Heather North... Daphne (voice)... Original Size (3840x2160) Original Size (1920x1080) Original Size (2000x1125) Original Size (2000x1125) Original Size (1448x814) Original Size (2000x3000) Original Size (960x1440) Original Size (2000x3000) Season 1 16 Episode(s) 1972-09-09 Season 2 8 Episode(s) 1973-09-08