Shonn Gregory was born on April 12, 1985 to Coralia and John Grigorescu. He began performing in small productions as a young boy especially in the classical music area. Soon after his graduation at the Transylvania , he landed a role for a historic documentary for Discovery Chanel. Almost one year later, he landed a role for a reality show. Soon after this he moves to London to start his acting career.
He started to work with London based actress Julia Lewis. After a period of time he was appointed to be in a short commercial and continued with a role in the film "Inception" directed by Christopher Nolan. Two weeks after this role, he is started to shoot for the movie: "Clash of the Titans", directed by director Louis Leterrier. Later on he appears in the Disney production "John Carter of Mars" after that being appointed to be in the new film "War Horse" directed by Steven Spielberg. He is currently taking acting training from the actor Sir Michael Danvers-Walker.