34 years old, is a filmmaker. He studied Fiction Directing at the San Antonio de los Baños International Film and Television School - EICTV, in Cuba. With ten years of experience in directing and scripting, he manages a production company HAVER FILMES. He directed 14 short films, including documentaries and fiction, which were considered and sought after in more than 50 national and international festivals.

In 2021, Kelm specified his pronouns as he/he and they/them and went on to sign his new works with his new name, Cássio Kelm.