Sen. Patrick Leahy has had a cameo in almost every Batman film. His most memorbile is the time he stood up to the Joker at the party in THE DARK KNIGHT. Leahy will have another cameo in The Dark Knight Rises in a scene with Bale and Freeman. Not only that but there more:
Leahy will be honored at a Warner Bros. advance screening of the film July 15 in Williston, Vt. Proceeds will benefit Montpelier’s Kellogg Hubbard Library — where Leahy got his first library card, and to which he gives all his movie earnings — as well as a local aquarium.
Source: Washington Post