Gabrielle Elizabeth Brennan was born on October 23, 1996, in Livingston, New Jersey. She began modeling at six months for a small agency before ending up at Ford Models in Manhattan. By age 4 she was acting in commercials which she continued until she landed her first film, "Walker Payne" directed by Matt Williams. Gabrielle won the role of Beth, the daughter of Jason Patric and Drea Dematteo, in a cast that also included Pulitzer Prize winner, Sam Shepard, and Academy Award-winner Bruce Dern. Shortly after filming was completed she played the role of a kidnap victim with leukemia on the "Bast" episode of Law & Order: Special Victims Unit. The producers must have liked her performance because she was soon asked back to do the voice-over role of Rose, who is heard pleading for her life during a therapy session gone wrong. In 2006 Gabrielle played Academy Award-winner Tim Robbins' daughter in "Noise" which was directed by Henry Bean and also starred Academy Award-winner William Hurt. Her biggest role to date is the part of Uma Thurman and Brett Cullens' daughter, Emma, in Director Vadim Perelman's film, "In Bloom". One of Gabrielle's most exciting acting experience was playing the dual role of sisters in a staged reading of Director Kirk Jones' "Everybody's Fine". She was able to hold her own and earned praise from her fellow actors who included Robert DeNiro, Kate Winslet, Parker Posey, Matt Dillon and Josh Lucas.

Gabrielle plays the flute and piano. She is in her final year at elementary school where she is a straight A student. She looks forward to a life long involvement in the arts.