Adam Mazer (born) is an American screenwriter. He is the writer of HBO film’s biopic, You Don't Know Jack, about the life of assisted-suicide advocate, Jack Kevorkian. Mazer was the co-writer of the 2007 Universal Pictures feature film, Breach, starring Chris Cooper, Ryan Phillippe and Laura Linney. Directed by Billy Ray, Breach is based on the true story of the FBI’s most notorious spy, Robert Hanssen. Adam and his former partner, Bill Rotko, optioned the rights of the young FBI aide who worked side-by-side with Robert Hanssen and played a vital role in his arrest. The movie was released in February, 2007.