Batman films.According to an article in CTV News, Senator Patrick Leahy, a Democrat from Vermont, is lifelong Batman fan who has had numerous appearances in five Batman films – including The Dark Knight with the late Heath Ledger.In 1995, Leahy appeared in Batman Forever via an uncredited cameo and in the same year, he voiced a character – the ‘Territorial Governor’ in Batman: The Animated Series.Other appearances came in Batman & Robin, Batman v.