A native of Berkeley Heights, N.J., Peter Sagal attended Harvard University and subsequently squandered that education while working as a literary manager for a regional theater, a movie publicist, a stage director, an actor, an extra in a Michael Jackson video, a travel writer, an essayist, a ghost writer for a former adult film impresario and a staff writer for a motorcycle magazine.

He is the author of numerous plays that have been performed in large and small theaters around the country and abroad, including Long Wharf Theater, Actors Theater of Louisville, Seattle Repertory, and Florida Stage. He has also written a number of screenplays, including Savage, a cheesy vehicle for obscure French kickboxer Olivier Gruner, and Cuba Mine, an original screenplay that became, without his knowledge, the basis for Dirty Dancing: Havana Nights.

Among Sagal's honors in the theater are a DramaLogue award for directing, grants from the Jerome and McKnight Foundations and a residency grant at the Camargo Foundation in Cassis, France. He has been commissioned to write new plays by the Seattle Repertory Theater and the Wind Dancer Theater and has been invited to work on his plays at Sundance, the Eugene O'Neill Theater Center and the New Harmony Project.

In 1997, Peter joined the panel of a new news quiz show on NPR, co-produced by WBEZ-Chicago, that made its debut on-air in January of 1998. In May of that year, he moved to Chicago to become the host of the show. Since then, Wait Wait...Don't Tell Me! has become one of the most popular shows on public radio, heard by nearly three million listeners on 520 public radio stations nationwide, and heard by a million people every month via podcast.

With Wait Wait, Peter has traveled around the country, playing to sold-out theaters from Seattle to Miami to Boston to Los Angeles, and many points in between, such as, for example, Akron. He's asked Salman Rushdie about PEZ dispensers, Tom Hanks about Hollywood bad boys, then-Senator Barack Obama about the eccentricities of Wade Boggs, and inquired as to Madeleine Albright's weightlifting accomplishments. The show made history in 2007 when, in May, Stephen Breyer became the first sitting Supreme Court Justice to appear on a quiz show, and then, in July, in front of ten thousand fans at Chicago's Millennium Park, Peter conducted the first (and so far, only) personal interview with United States Attorney Patrick Fitzgerald since his conviction of White House Aide Scooter Libby.

In 2008, Wait Wait celebrated its 10th anniversary on the air, and was the recipient of a Peabody Award for excellence in broadcasting. A year later, in the fall of 2009, Wait Wait made its New York debut with a show at Carnegie Hall, which sold out in the first 90 minutes after tickets went on sale.

In October 2007, Harper Collins published Peter's first book, The Book of Vice: Naughty Things and How to Do Them, a series of essays about bad behavior, which was released in paperback in 2008. He is also a regular columnist for Runner's World, and has completed the Chicago, New York and Boston Marathons. He was named by New Jersey Jewish News as one of the top ten Jewish entertainers from New Jersey.