Elizabeth Smart lived through the unthinkable when she was kidnapped from her own bedroom in 2002 when she was just 14 years old. More than two decades later, Elizabeth has credited her family with helping her deal with the traumatic experience. While her parents, Ed Smart and Lois Smart, previously spoke to the media about Elizabeth's disappearance, her five siblings haven't been as outspoken or out in the public eye. More than two decades after Elizabeth was kidnapped and recovered, and with the release of a new Netflix documentary on the kidnapping, people are curious to know more about her brothers and sister. How Many Siblings Does Elizabeth Smart Have? Elizabeth is the second of Ed and Lois' six children. She has four brothers, Charles Smart, Andrew Smart, Edward Smart Jr. and William Smart, as well as a younger sister named Mary Katherine Smart. Elizabeth Smart: Sherri Papini 'Will Have to Create a New Normal' Who Are Elizabeth Smart's Brothers? While Elizabeth has embraced a public life, her four brothers have chosen to live more private lives. Elizabeth, Ed and Mary Katherine all participated in Netflix's 2026 documentary Kidnapped: Elizabeth Smart. However, all of her brothers and Lois opted to not share their perspectives on the experience in the project. Who Is Mary Katherine Smart? Mary Katherine played a pivotal role in Elizabeth's kidnapping case. The sisters shared a bedroom at the time of the kidnapping, which made Mary Katherine the only witness to the crime. The younger Smart sister was able to identify Brian David Mitchell as Elizabeth's kidnapper after he'd been hired to help out with the family's home. Micthell and his wife, Wanda Barzee, were tracked down nine months after Elizabeth's disappearance and they were arrested, while the teenager was reunited with her family. He was found guilty of interstate kidnapping and unlawful transportation of a minor, and he was ultimately sentenced to life in prison. As for Barzee, she was found guilty of kidnapping and other offenses. Barzee was sentenced to 15 years in prison, and she was released early in September 2018. Erik and Lyle Menendez's Family Guide: Who Supports Them and Who Doesn't? Elizabeth Smart Called Mary Katherine Smart Her 'Hero' While reflecting on her kidnapping, Elizabeth called Mary Katherine her "hero" and said that she "saved" her. "Had she not remembered who had kidnapped me, who's to say that I would be here today?" Elizabeth said while appearing on a January 2026 episode of Today. "The police all had their suspects, and my captor I don't even think was on their radar at all. So, she is my hero." Elizabeth Smart Credited Her Family for Helping Her After Her Abduction In Kidnapped: Elizabeth Smart, Elizabeth said that she was only able to move on from the kidnapping with the help of her family. "Seeing my family again, it reminded me that everything that had happened, it didn't take away my value or my worth. Like, those monsters could never take that away," she said while reflecting on reuniting with her family. Kitty Menendez's Sister Defends Erik, Lyle in Tell-All: Biggest Revelations She continued, "I just remember being so excited to be home. I woke up a few times during that [first night back home] and both my parents were standing above me making sure I was still there." Elizabeth added that her mom played "a huge part" in her processing what happened during her horrific ordeal.