Cornacchia graduated from Conestoga High School in Berwyn, Pennsylvania, and the University of Southern California with a degree in theatre.
Cornacchia is also well known as Jabba the Hutt and Admiral Ackbar in Patrick T. Gorman's critically acclaimed The Star Wars Trilogy in Thirty Minutes.
He also guest stars in the episode, "Jake...Another Little Piece of My Heart" as a Las Vegas preacher in the 3rd season of Hannah Montana, the TV series.
In the fall of 2009, Cornacchia produced and starred in Grey Skies, a horror film about a group of college friends who reunite to vacation in a remote location only to find that they are not alone.
Also in 2009, Cornacchia starred alongside Rhys Darby, Sasha Alexander, and Pam Cook in Edoardo Ponti's comedy Coming & Going, and produced the short film What the F&#$ Was That?