- Sep 1 Cécilia Rhode, Swedish model
- Sep 1 Ray D'Arcy, Irish DJ and TV presenter
Keanu Reeves (59 years old)
Sep 2 Canadian actor (Bill & Ted's Excellent Adventure; The Matrix), and rock bassist (Dogstar), born in Beirut, Lebanon
- Sep 3 Holt McCallany, American actor (Mindhunter), born in New York City
- Sep 3 Spike Feresten, American television writer (Seinfeild), born in Fall River, Massachusetts
- Sep 6 Rosie Perez, American actress (Do the Right Thing, White Men Can't Jump), born in Brooklyn, New York
- Sep 8 Peter Duncan; Australian film and television director and screenwriter (Passion; Rake), born in Sydney, Australia
- Sep 8 Raven [Scott Levy], American professional wrestler, born in Philadelphia, Pennsylvania
- Sep 14 Faith Ford, American actress (Another World, Corky-Murphy Brown), born in Alexandria, Louisiana
- Sep 16 Mary Coustas, Greek-Austalian actress and comedian, born in Melbourne, Australia
- Sep 16 Molly Shannon, American actress (Other People), born in Shaker Heights, Ohio
- Sep 16 Rossy de Palma, Spanish actress (Women on the Verge of a Nervous Breakdown), born in Palma, Balearic Islands, Spain
- Sep 17 Christian Conrad, American actor (Charley Hannah, High Mountain Rangers), born in Woodland Hills, California
- Sep 18 Holly Robinson, American actress (21 Jump Street), born in Mount Airy, Philadelphia, Pennsylvania
- Sep 19 Bob Papa, American sportscaster (NBC Sports), born in Dumont, New Jersey
- Sep 19 Kim Richards, American actress (Nanny & Prof, James at 15), born on Long Island, New York
- Sep 19 Patrick Marber, British playwright (Closer) and comedian, born in London, England
Trisha Yearwood (59 years old)
Sep 19 American country singer ("Believe Me Baby (I Lied)"; "How Do I Live"), cookbook author, and TV host (Trisha's Southern Kitchen), born in Monticello, Georgia
- Sep 20 Maggie Cheung, Hong Kong actress (1st Asian actress to win at Cannes for "Clean"), born in Hong Kong
- Sep 24 Gene Watkins, American actor (James Walsh-As the World Turns), born in Waco, Texas
- Sep 25 Anita Barone, American actress, born in St. Louis, Missouri
- Sep 25 Maria Doyle Kennedy, Irish folk and rock singer (Mütter), and actress (The Tudors; Outlander), born in Clontarf, County Dublin, Ireland
- Sep 26 Ty Miller, American actor (The Kid-Young Riders), born in Granada Hills California
Janeane Garofalo (59 years old)
Sep 28 American comedienne (SNL, Truth about Cats & Dogs), born in Newton, New Jersey
- Sep 28 Susan Walters, American actress (Lorna-Loving, Mary Beth-Dear John), born in Atlanta, Georgia
- Sep 30 Monica Bellucci, Italian actress (Dracula), born in Citta di Castello, Italy
About September 1964
How Old? 59 years old
Generation: Baby Boomer
Leap Year: Yes