Peter-No-Tail (Pelle Svanslös) is a cat who was born without a tail. He compensates this by studying hard and, much to the dismay of his arch-rival Magnus (Måns), he receives a fancy university degree very few cats in the university town Uppsala, Sweden have obtained. Peter is visited by his American relative Pelle Swanson who invites him to visit his new home country America - in the movie called Americat. There everything is bigger and everything seems possible.
| Actor | Role |
|---|---|
| EErik LindgrenPelle | Pelle |
 Ewa FrölingMaja Gräddnos | Maja Gräddnos |
 Ernst-Hugo JäregårdMåns | Måns |
 Carl BillquistBill | Bill |
 Björn GustafsonBull | Bull |
 Stellan SkarsgårdPelle Swanson | Pelle Swanson |
 Mille SchmidtFiladelfia-Fille | Filadelfia-Fille |
 Agneta PrytzGammel-Maja | Gammel-Maja |
 Lena-Pia BernhardssonGullan från Arkadien | Gullan från Arkadien |
| CCharlie ElvegårdLaban från Observatorielunden | Laban från Observatorielunden |
 Åke LagergrenMurre från Skogstibble | Murre från Skogstibble |
 Nils EklundRickard från Rickomberga | Rickard från Rickomberga |
 Eddie AxbergRat | Rat |