Sudano was born in Los Angeles, California to the late Grammy Award winning singer Donna Summer and songwriter Bruce Sudano. She has a younger sister, singer-songwriter Amanda Sudano of Johnnyswim, and an older half-sister, Mimi Sommer from her mother's first marriage to Helmut Sommer. She was named after her father's hometown of Brooklyn, New York.
Sudano spent the early part of her childhood on a 56-acre ranch in Thousand Oaks, California until her family moved to Connecticut when she was 10 years old. When she was 14, her family relocated to Nashville, Tennessee. Here, Sudano gravitated toward the arts and flourished.  She sang in the Gospel Choir at church. Sudano and her sister's spent summers touring and singing backing vocals for their famous mother. In her leisure, she studied dance and wrote songs.
She attended high school at Christ Presbyterian Academy where she appeared in all the theater productions. Sometimes Sudano accompanied her parents while they toured around the world, continuing her studies with tutors. A distinguished student, she was valedictorian at her graduation.
Upon graduation Sudano was accepted at to Brown, Duke and Georgetown University. However she chose to remain close to home and attended Vanderbilt University. Sudano eventually left Vanderbilt to study at the Lee Strasberg Theatre and Film Institute in New York.
While Sudano was studying acting in New York, Sudano was spotted by a modelling agent and signed to the Ford Modeling Agency. Sudano appeared in numerous advertising campaigns in print and television, including Clairol, Clean & Clear and K-Mart.
Brooklyn replaced Meagan Good as Vanessa Scott on My Wife and Kids. She is Junior's girlfriend and later wife, who first appears in the season finale of season 3 (played by Meagan Good). She continues as a regular cast member throughout the rest of the series five year run.
In addition to acting and some commercial modeling, Brooklyn has been fulfilling her other passion writing and performing her own music. She is currently working in the studio with Henry Hirsch (producer for Lenny Kravitz) in New York.
She played Mikaela in the MTV TV Movie Turn the Beat Around (film)
Her most recent TV appearance was in $#*! My Dad Says in early 2011.
Sudano married her longtime boyfriend, Mike McGlaflin, on October 8, 2006. Sudano resides in Los Angeles.