According to a source close to the actor, Kasyanov was hospitalized before his death. "In the last days, he was in the hospital, breathing with the help of a machine. His age took its toll, as well as the sports injuries he sustained throughout his life. He was conscious until the very end, recognized everyone. His heart was functioning, his mind was clear, but everything else was gradually... It’s very sad that he has passed away," shared the source with the publication. Tadeusz Kasyanov gained widespread fame after starring in films such as 'Pirates of the 20th Century', 'In a Zone of Special Attention', 'Alarm', 'Operation', and others. Additionally, he was the president of the All-Russian Federation of Hand-to-Hand Combat and Traditional Karate, and a distinguished coach of Russia.