Khan made his first film appearance at the age of three in his uncle Nasir Hussain's 1969 film
Pyar Ka Mausam, playing
Shashi Kapoor's role as a child. He made his film debut as an adult in 1988, playing a minor role as a villain in his brother Aamir's film
Qayamat Se Qayamat Tak. He worked as an assistant director in his father's 1990 film
Tum Mere Ho and his cousin
Mansoor Khan's
Jo Jeeta Wohi Sikander (1992), both starring Aamir in the leading role. Faisal went on to appear in a few B-grade films that fared poorly at the box office. After appearing in the 2005 film
Chand Bujh Gaya, he went on a decade long hiatus. In 2015, it was announced that he would be making his comeback and star in the film
Chinar Daastaan-E-Ishq, a film produced by Rajesh Jain. In 2017, he starred in
Danger, a
horror film directed by
Faisal Saif. The film remains unreleased. In 2021, he made his directorial debut and starred in the psychological thriller film
Faactory as well as singing a song for the film. In 2022, he made his debut in
Kannada films with
Oppanda. ==Personal life==