Released at the end of World War II, he moved to the Casbah of Algiers where he worked as a barber, and also in theater. He created the character of Na'anaa in the play "El-houria" which became, in 1950, "the "plot"" then "tigoule ou ti ghoul pas." After the troupe disbanded, he was hired in 1953 to act on television under . His first drama was "La poursuite" ("The Chase") When the Algerian war for independence broke out, he was totally committed to the fight. In 1968, he joined the Algerian National Theatre, then abandoned his favorite character "Na'naa" for the even more significant "Boubagra". With the Four Seasons theater troupe, he toured Algeria for ten years. In 1976 he was elected to the National People's Congress, and the company was dissolved. Hassan El-Hassani has been featured in the credits of many television and film productions since independence.