Kadro (4)
Bob McFaddenMilton the Monster (voice)
Dayton AllenFearless Fly / Professor Weirdo / Heebie / Jeebie (voice)Herb DuncanCount Kook / Muggy Doo / Two Feathers (voice)Beverly ArnoldPenny Penguin / Flora Fly (voice) (uncredited)Bob McFaddenMilton the Monster (voice)Dayton AllenFearless Fly / Professor Weirdo / Heebie / Jeebie (voice)Herb DuncanCount Kook / Muggy Doo / Two Feathers (voice)Beverly ArnoldPenny Penguin / Flora Fly (voice) (uncredited)