Mazur began modeling and acting in her teens. One of her most well-known ad campaigns is the three TV commercials for Gap she did with director Adam Daelay in 1999: "Everybody in Cords", "Everybody in Leather" and "Everybody in Vests", in which she sings. She has appeared in a number of widely released films in the past several years, including
Torque,
Dead Man Running,
Monster-in-Law,
Stoned, and
Just Married. She has also appeared in several television series, including
Castle,
CSI: Miami,
Cold Case,
Strange World,
Chuck, and
Rizzoli & Isles. Early in the first (2009) season of the television series
NCIS: Los Angeles, Mazur appeared in a single episode as a
Secret Service agent who is enamored with
Chris O'Donnell's lead character. While the role was potentially to be recurring, Mazur's character did not reappear on the series. She appeared in three episodes, over the first three seasons of
Castle as Gina, the publisher and second ex-wife of character
Richard Castle. Since 2018, she has played Laura Baker in
The CW drama series,
All American, which was renewed for a sixth season in January 2023, and renewed for a seventh season in June 2024. ==Philanthropic activities==