Daniyar Tazhenov
— Kasym
Алексей Бардуков
— Sasha
Dina Tasbulatova
— Karlygash
Sanjar Madi
— Aibar
Дулыға Ақмолда
— Abai
Екатерина Климова
— Svetlana Vladimirovna
Timur Makazhan
— School Director
Quanysh Mamytkaliev
— Gaziz
Владимир Литвинов
— Polkovnik
Muhammed Adiuly
— Kasym (little)
Kambar Nurgali
— Kasym (in internat)
Beknazar Daniyar
— Gaziz (in internat)
Oskar Kalmykov
— Sasha (in internat)
Edilzhan Nurlybek
— Asim (in childhood)
Aslanbi Medeulov
— Asim (in youth)
Shoqan Chupanbayev
— Aibar (in childhood)
Zhalgas Lesbaev
— Aibar (in youth)
Dina Akhmedzhan
— Aunt Aigul
Sagat Zhylgheldiyev
— Bayatkhan
Sagyndyk Zhumadil
— Kadyr
Yerzhan Tusupov
— Ospanov
Vitaly Bagryntsev
— Scientist
Arlan Kassimanov
— Young Scientist
Александра Тулинова
— Dasha
Arai Orakbaeva
— Kasym's Mother
Marat Abaydilda
— Erkin
Bayana Sapar
— Kadyr's Wife
Даулет Жанаев
— Rabotnik Kadyra
Aikyn Kalykov
— Aikyn
Aleksey Frolov
— District Police Officer