He was married two times. First wife - Zanka Alexandrova. Second wife Liliana Lazarova. His only child is the Bulgarian drama actress Irina Rosic, but he also had a step son from his second wife's first marriage - Stoyan Kolev. Rosic has two grandsons - Valentin Hristov, George Sabev and two step granddaughters Maria Koleva, Plamena Koleva. He also has one great-grandson Branimir Hristov and a great granddaughter Jovana Hristova.
Death
Rosić died on 21 February 2014 from complications after a brain tumor surgery. He was 81.