Tony Vivaldi

Tony Vivaldi was the main antagonist of the film-within-film "Jack Slater IV" ,but the secondary antagonist of the 1993 action-comedy film "Last Action Hero" ,he was portrayed by the late legendary actor Anthony Quinn .

In "Last Action Hero"
in the film ,Vivaldi was the main villain of the Jack Slater movie "Jack Slater IV" and the secondary antagonist of film.

he was the most richest and powerful sicilian mafia boss in LA. he's henchman Mr. Benedict (the main antagonist of the movie) is hates him and kills him and finally taking over his entire villa and going out to kill Jakc Slater and Danny. he is also responible to the death of Slater's cousin Art Carney.

in the police of LA ,John Practice is helps Benedict but gets killed by Slater after Danny's arrival to the movie.

How he Died
Benedict is came to his (Vivaldi) own swimming pool and finally Benedict is pull out his own gun and shoots Vivaldi which finally being dead and Benedict is takes over his house.