The series followed the exploits of the eponymous Stoppit (a red ball of fluff with arms and legs), and Tidyup (a blue-haired, necktie-wearing purple creature who is shaped like a bowling pin), in their native land, which is filled with giant-to-them gherkins. Supporting characters include Bee Quiet and Bee Have (two, as their names suggest, bees, the former of whom is huge and has a pursed-up mouth, but the latter is much smaller than him and does not, and they both have a mop of red hair at the top of their heads), Eat Your Greens (a blue-haired, frog-like green creature), Comb Your Hair (a six-legged, cow-like blue creature with long orange hair and a bell round his neck), Wash Your Face (a Wellington boot-wearing creature without arms who usually appears brown with black boots, but a bath revealed him to be pink with yellow boots), Go And Play (a light green creature who wore shorts and trainers), I Said No (an angry red creature who had a pink pet called Not Now), Hurry Up (a flying ball of black and yellow scribble), Calm Down (a yellow creature with a blue umbrella), Don't Do That (a spider-like red creature who lived in his shell), Go To Bed (a tired, pink-haired white creature), Say Please And Say Thank You (a two-faced plant), Clean Your Teeth (a purple-haired, sunglasses-wearing orange creature with huge teeth), and Take Care (a flying blue kangaroo-like creature). There are also groups of extra characters referred to as Naughties (who are purple with yellow spots, and will cause "Naughtypox" when touched) and Sit Downs (who are pink and have magic powers that can cure Naughtypox). None of the characters actually speak decipherable words as such. Instead they gabble, grunt, squeak, and hum whilst series narrator Terry Wogan unravels the tale for viewers. The characters' noises were provided by the show's co-creator Terry Brain but he was not credited for it.