Allweddair Cockroach

Yn y flwyddyn 2035, mae'r collfarnwr James Cole yn anfoddog yn gwirfoddoli i gael ei anfon yn ôl mewn amser i ddarganfod tarddiad firws marwol a ddinistriodd bron pob un o boblogaeth y ddaear a gorfodi'r goroeswyr i gymunedau tanddaearol. Ond pan anfonir Cole ar gam i 1990 yn lle 1996, mae'n cael ei arestio a'i gloi mewn ysbyty meddwl. Yno mae'n cwrdd â'r seiciatrydd Dr Kathryn Railly, a'r claf Jeffrey Goines, mab i arbenigwr firws enwog, a allai ddal yr allwedd i'r grŵp twyllodrus dirgel, Byddin y 12 Mwnci, y credir ei fod yn gyfrifol am ryddhau'r afiechyd llofrudd.

Oggy, an anthropomorphic cat, would prefer to spend his days watching television and eating, but is continuously pestered by three roaches: Joey, Marky and Dee Dee. The cockroaches' slapstick mischief ranges from plundering Oggy's refrigerator to hijacking the train he just boarded. In many situations Oggy is also helped by Jack, who is more violent and short-tempered than him and is also annoyed by the cockroaches. Bob, a short-tempered bulldog, also appears in the show, and is Oggy's neighbor.