[1] Born in Milan in April 1920, Tedeschi got a degree in pedagogy before enrolling at the Silvio D'Amico National Academy of Dramatic Art, which he abandoned after two years to make his professional debut with the Evi Maltagliati-Salvo Randone-Tino Carraro stage company.

[2] In the late 1940s he entered the Andreina Pagnani-Gino Cervi theatrical company, with whom he got his first personal success for his performance in the comedy play Quel signore che venne a pranzo.

[2] He later worked intensively with Luchino Visconti and with the Piccolo Teatro directed by Giorgio Strehler.

[2] In his variegated career, Tedeschi was very active as a voice actor, a dubber and a radio personality, and starting from the early 1950s he appeared in numerous films and TV series, even if often playing supporting roles.

[2][3] On 20 April 2020, Tedeschi celebrated his 100th birthday and received a special message from the Italian President Sergio Mattarella that same day.