Bello was born in Norristown, Pennsylvania, the daughter of Kathy, a teacher and school nurse, and Joe Bello, a contractor. Her father is Italian American and her mother Polish American. She grew up in a working-class Roman Catholic family and graduated from Archbishop Carroll High School (Radnor, Pennsylvania). Later she attended Villanova University, majoring in political science. She intended Read more...

Bello's breakthrough came when producers Kerry Lenhart and John J. Sakmar cast her as Mrs. Smith in the spy show Mr. & Mrs. Smith. The show was cancelled after just eight weeks on the air. Then came a guest stint on ER as the feisty pediatrician Dr. Anna Del Amico, in which she guest-starred in the final four episodes of the third season. Bello remained on the show for one season, departing Read more...

Bello has a son named Jackson Blue, born in 2001, with former long-time boyfriend Dan McDermott. She is currently dating musician, artist and part-time waiter Bryn Mooser. They are now engaged, no date on the wedding set.