During a Soviet circus tour in Japan, a small street musician, Ken, meets a clown, Yuri Nikulin. Upon learning that his sick father is being treated in the Soviet Union, Ken sets off in search of him. The friendship of the great clown and the boy continues in Moscow.
Chiharu Inayoshi
as Ken Kawama
Makiko Ishimaru
as Michiko Sakuma in childhood
Volodya Bykov
as Vasska
Tanya Aynyukova
as Alyonka
Юрий Никулин
as
京マチ子
as Director of the shelter
宇野重吉
as Nobuyuki Noda, Ken's uncle
Инна Макарова
as Klava
宇津井健
as Teacher Tabata
Станислав Чекан
as raftsman
船越英二
as Japanese in Leningrad and Moscow
Любовь Соколова
as Lieutenant of militia
