Brianna Johnston is an Alberta-based actor whose professional work spans film, television, voice-over, and stage performance. In addition to her on-screen and voice acting career, she is also a certified Fight Director and a winner of the Paddy Crean Award from The Academy of Fight Directors of Canada, highlighting a parallel expertise in stage combat. Her work in theatre has also earned her a nomination for the Betty Mitchell Award for Best Supporting Actress in a Comedy.

In the realm of anime voice acting, Johnston is primarily known for her role as Tomari Seto in the English dubs of the Cardfight!! Vanguard franchise. She first voiced the character in the 2021 series Cardfight!! Vanguard overDress, produced by Sentai Filmworks and HiDive. She reprised this role for the series' second season in 2022 and continued to voice Tomari Seto in the subsequent sequel series, Cardfight!! Vanguard will+Dress, which began airing in 2022. Her work on will+Dress spanned multiple seasons, with her casting confirmed for the third season released in 2023. Beyond this prominent and recurring role in the Cardfight!! Vanguard franchise, no other major anime voice credits or significant recurring collaborations with specific directors or studios are detailed in available, reliable sources.