Born Konstantin Vasilev Kotsev on June 4, 1926 in the city of Istanbul, he entered the law faculty at the St. Kliment Ohridski University of Sofia where he graduated in 1950. Subsequently, he enrolled acting at The National Academy for Theatre and Film Arts graduating in 1958.
After the graduation, Kotsev was appointed in the Burgas Theatre for a year. In 1959, he joined the troupe of the newly founded Satirical Theatre „Aleko Konstantinov“ in Sofia where he remained until 1984. During the end of the 1980s, Kotsev was part of the Municipal Theatre of Sofia.
His film debut in a main role was in 1958 in the Bulgarian film classic On a Small Island directed by Rangel Valchanov.
Kotsev has a son Dimitar (born 1971) and a daughter Zornitsa (born 1972).
1988
as Karaibrahim's father dyado Galushko
1986
as съученик на Невена Алданова
1984
as Peshev
1983
as The Director
1980
as Pop Vecherko
1978
as The Retiree Snegov
1975
as Bosyo
1974
as Elenko
1973
as Spiro
1972
as Gosho Kalimanski
1971
as Van Alten
1970
as Seer
1969
1969
as Prosecutor
1968
as Balas
1968
as Vasil Radev
1968
as Ivan Gandzhulov
1965
1963
as dr. Kolev
1960
as Asistentat
1958
as Zheko, the carpenter