Paul Allen Wood Shaffer (born November 28, 1949) is a Canadian-American musician, actor, author, composer, entertainer, and comedian. He is known being the composer for the CBS Orchestra and being the sidekick of David Letterman on the Late Show with David Letterman.
Shaffer was born on November 28, 1949 in Thunder Bay, Ontario, Canada to a Jewish family. He studied at the University of Toronto. Shaffer married Cathy Vasapoli in 1990. They have two children. He now lives in New York City, New York.