Topper thinks summer vacation is boring. He misses his father who is sailing the seven seas. He can't figure out Sille who's cute. And his best friend, Viggo, always has to help out his punctilious dad, Mr Lion, in the café on the first floor of the red house where Topper lives on the top floor with his mother. One day, Topper finds a magic pencil and when he draws a rhino on the wall, the drawing comes to life! While Topper and Viggo try to keep the rhino, which they name Otto, well fed with black bread and raspberry soda before it devours all the furniture, Mr Lion pleads with the local authorities to come and remove the stomping pachyderm.
Nikolai Aamand
as Viggo
Noah Crone Back
as Jakob
Lars Brygmann
as Hr. Løwe
Kaya Brüel
as Toppers Mor
Rebecca Brüel
as Almanda
Lasse Guldberg Kamper
as Topper
Mikkel Brinch Hansen
as Albert
Asta Danielsson
as Sille
Helle Dolleris
as Fru Løwe
Søs Egelind
as Lærerinde
Tom Jensen
as Toppers Far
Bodil Jørgensen
as Fru Flora