By the time she was 18 years old, Mistress Isabelle Brooks was performing in drag professionally. In Houston, she was an original cast member at the drag-themed restaurant chain
Hamburger Mary's, and has regularly performed at
JR's Bar and Grill, where she hosted weekly
Drag Race viewing parties, In December 2019, Mistress Isabelle Brooks broke her ankle and due to the
COVID-19 pandemic, was forced to rely on wig-styling for income. She has said: "I started hustling and pushing out wigs to queens all over the world. It truly feels like overnight my business skyrocketed, and weirdly enough, one of the darkest moments in my life brought me to exactly where I was supposed to be." and placing in the top four alongside
Anetra,
Luxx Noir London, and
Sasha Colby. She was the first contestant on the series to represent Houston. According to Mistress Isabelle Brooks, she spent approximately $100,000 on her looks for
Drag Race, including $40,000 for the final episode. Many of her looks were created by Houston designers Yahaira DeHill and Gin Martini. For the
Snatch Game challenge, Mistress Isabelle Brooks impersonated comedian
Rosie O'Donnell; Joey Nolfi of
Entertainment Weekly said her character "seemingly unintentionally" and "self-admittedly devolved into"
Abby Lee Miller. Shafaq Patel of
Axios complimented Mistress Isabelle Brooks's performance of "Big Girl!" and said she "served Southern sass and her looks were stunning". Pride.com's Bernardo Sim called Mistress Isabelle Brooks "one of the funniest" contestants of the season and said she "has been an absolute standout in the cast". He wrote, "Fans have been living for her old-school attitude, impeccable makeup skills and outfits, and undeniable star power." According to Jordan Robledo of
Gay Times, Mistress Isabelle Brooks was "inundated with hateful messages targeting her appearance and interactions with her fellow contestants" as the show aired. Her
Instagram account was suspended multiple times. Charlie Duncan of
PinkNews said Mistress Isabelle Brooks "delivered a blistering takedown to online trolls spreading anti-drag hate". The website's Marcus Wratten described her as the "shadiest" contestant of season 15. In 2023, Mistress Isabelle Brooks was added to the lineup of drag-show tour
Werq the World's shows in North America. On April 23, 2025, Mistress Isabelle Brooks was announced as one of eighteen former
Drag Race contestants participating in the
tenth season of ''
RuPaul's Drag Race All Stars''. == Personal life ==