Åke Söderblom

as Hans Lövgren

Margareta Fahlén

as Gabriella Strandberg

Olof Winnerstrand

as Claes-Herman Sundelius

Barbro Larsson

as Diana Sundelius

Douglas Håge

as Oscar

Börje Mellvig

as Stenström

Sven Lindberg

as Lovén, Zoologist

Jeanne Fusier-Gir

as Lövgren's Housemaid

Pierre Bertin

as UNESCO Director-General

René Alié

as Policeman (uncredited)

Odette Barencey

as Woman (uncredited)

Albert Bour

as Fish Salesman (uncredited)

Gil Delamare

as Policeman (uncredited)

Moustache

as Oscar the Seal (uncredited)

Rognoni

as Zoo Owner (uncredited)

Pierre Sergeol

as Restaurant Owner (uncredited)

Made Siamé

as Fish Seller (uncredited)