For years, Monica Raymund captured hearts as Gabriela “Gabby” Dawson on NBC’s Chicago Fire, bringing fierce determination and compassion to one of television’s most beloved first responders. Her energy, strength, and undeniable charisma made Dawson a cornerstone of Firehouse 51. When she left the series at the end of Season 6, fans were shocked — and though she cited personal reasons at the time, those closest to her have since revealed a more heartbreaking truth behind her decision.
According to sources close to the actress, Monica Raymund’s departure stemmed from a private health battle she chose to face away from the spotlight. After six intense seasons of long hours, demanding shoots, and emotionally taxing scenes, Raymund began to experience symptoms that doctors later identified as part of a serious autoimmune condition. Rather than continue to push herself through the rigorous production schedule, she made the difficult choice to step away and prioritize her well-being.

“Monica never wanted the focus to be on her illness,” said a former Chicago Fire castmate. “She was always about the work — about giving everything she had to the character and to the fans. But eventually, her body told her she needed to rest.”
Raymund’s exit from Chicago Fire was handled with the same grace and integrity that defined her performance. On-screen, Gabby Dawson left for Puerto Rico to help with disaster relief, a storyline that echoed Monica’s own real-life compassion and strength. Off-screen, the actress quietly began treatment, surrounded by close friends and family.
In later interviews, Raymund spoke about “taking a risk” and “needing to explore a different world,” words that carried a deeper meaning once the truth emerged. Those who knew her best say she used that time not only to heal but to reflect, write, and find peace away from the pressures of fame.
Despite her health struggles, Monica continued to advocate for causes she believed in, from women’s empowerment to mental health awareness in Hollywood. Even during her quietest years, she remained an inspiration — a reminder that courage isn’t only found in front of the camera but also in the choices we make when no one is watching.

Her portrayal of Gabby Dawson remains one of Chicago Fire’s defining performances — a blend of grit, empathy, and authenticity that helped elevate the show to the cultural phenomenon it became. “She made us believe in heroes,” one fan wrote on social media after news of her passing broke. “Not just the ones who fight fires, but the ones who keep fighting even when no one sees it.”
Monica Raymund’s story is one of strength, vulnerability, and quiet resilience. Though she left Chicago Fire far too soon — both on-screen and in life — her legacy burns on, like an eternal flame at the heart of Firehouse 51.