Todor Kolev as Associate professor Denev / Cousin Ivan

Nadya Todorova as Kulisheva, a research worker

Pavel Popandov as Kancho Peev, candidate PhD

Yordanka Kuzmanova as Kortinska, a research worker

Aneta Sotirova as Temenuzhka, The Cousin Ivan's sweetheart

Georgi Rusev as the managing director Popyordanov

Georgi Mamalev as the journalist

Lyuben Kalinov as Rusev

Radosveta Vassileva as Shivacheva, research-worker

Ivan Yanchev as Research-worker

Kina Mutafova as Denev's neighbor

Tanya Vuchkova as

Eva-Maria Radichkova as

Ivan Kutevski as

Georgi Georgiev as