Min vän Oscar

Åke Söderblom

Hans Lövgren

Margareta Fahlén

Gabriella Strandberg

Olof Winnerstrand

Claes-Herman Sundelius

Barbro Larsson

Diana Sundelius

Douglas Håge

Oscar

Börje Mellvig

Stenström

Sven Lindberg

Lovén, Zoologist

Jeanne Fusier-Gir

Lövgren's Housemaid

Pierre Bertin

UNESCO Director-General

René Alié

Policeman (uncredited)

Odette Barencey

Woman (uncredited)

Albert Bour

Fish Salesman (uncredited)