Mackan's real name is Margaret. She is 14 and move a lot because her father is employed at the Railroad Company. In a small town she meets Kenneth.He is 18 and the coolest guy in town. Their relationship is a major triumph for Mackan.

Maria Andersson
as Margareta, "Mackan"

Kåre Mölder
as Kennet Nilsson

Franciska von Koch
as Gudrun Olsson

Hasse Jonsson
as Lången

Tomas Norström
as Roffe

Camilla Floyd
as Mackan's Sister

Ulla Blomstrand
as Kerstin, Mackan's Mother

Willie Andréason
as Sven, Mackan's Father

Margit Carlqvist
as Gudrun's Mother

Marianne Aminoff
as French teacher