Best friends with her The Walking Dead (2010) co-star and fellow actress Kyla Kenedy, whom she met at an acting class, when she was seven-years-old.
Before she started acting, she was a competitive cheerleader. Her mom asked if there was anything else that she wanted to do, and she replied "I want to be on TV!".
Brighton's parents knew she had a knack for acting ever since she was a small child when she would pretend to be sick for 'fun'.