Born in Milan, after completing his classical education Feliciani attended the Accademia dei filodrammatici obtaining the diploma.

[1][2] Later he was part of various companies, obtaining his first personal successes in 1946, with the drama La luna è tramontata.

[1][2] He had also a very long and important collaboration on stage with Vittorio Gassman, also performing tours abroad with him.

[1] In the 1970s he came back to Piccolo Teatro for two important works, Santa Giovanna dei macelli (1970–71) and Le case del vedovo (1975-76).

[2] Feliciani was also very active in films, on television and as a voice actor, on the radio and in the dubbing.