Stefan Kostadinov Valdobrev is a Bulgarian actor, film/theatre composer, singer-songwriter and filmmaker. He received classical training at the National Academy of Theatre and Film Arts in Sofia.
Valdobrev rose to prominence in the early 1990s, mainly with his hit songs, which made him extremely popular and gained him idol status on the Bulgarian music scene, twice being awarded as best male artist at the National Music Television ceremonies. Despite that he never quit his acting career and took part in numerous performances which have spanned a wide variety of genres from classical to contemporary drama, and from popular comedies to alternative, non-commercial projects, all staged by the most prominent Bulgarian directors on the most significant theatre stages. At that time Valdobrev gradually entered the world of film and theatre music and since 1992 has gone on to enjoy composing the original scores for more than 70 stage performances and 20 feature and documentary movies, winning many plaudits and awards for his work. In 2000 he received the Golden Rose film award for debut for the Dog's Home original movie soundtrack featuring Arabel Karajan.