Born in Basiliano, in the province of Udine (in the Northeastern Italian region of Friuli-Venezia Giulia), after having worked in shipyards, Antonutti embraced the acting career, working mainly on stage, especially at the Teatro Stabile di Trieste and at the Teatro Stabile di Genova, in which he often worked under Luigi Squarzina.

His most notable performance was in the Taviani brothers' acclaimed film Padre Padrone.

[6] Antonutti was also regularly employed in the dubbing of foreign films into the Italian language.

Other actors he dubbed included John Hurt, Omar Sharif, Michael Gambon, Christopher Plummer, Donald Sutherland, James Cromwell and Robert Duvall.

Antonutti died in Udine on 5 November 2019, at the age of 84, after suffering a long cancer-related illness.