Kim Rossi Stuart began acting at the age of 5 in Fatti di gente perbene (1974). He left home at 14 (1983) and also left school to study theater and in 1986 began acting regularly, especially on TV productions, like Fantaghirò (1991) and for the cinema with a small role in The Name of the Rose (1986). However it was with Il ragazzo dal kimono d'oro (1987) and Poliziotti (1995) that Kim reached popularity. After this commercial movie he began to act only in quality movies, like Senza pelle (1994) where his role, a man with psychological problems, was appreciated by critics. Then he acted with the legendary director Michelangelo Antonioni in Al di là delle nuvole (1995), and in an international TV fiction Le Rouge et Le Noir (1997).

In the last years he came back to act in the theater with "Re Lear", a tragedy by William Shakespeare, and with the most important Italian actors like Turi Ferro in the opera "Le visiteur", a comedy by Eric-Emmanuel Schmitt, from which it is derived Il visitatore (1997), still interpreted by Kim and Turi.