The iconic TV series ER not only captivated audiences with its high-stakes drama and compelling storylines but also introduced us to a host of talented actors. While some of these actors are household names, others have passed on without as much fanfare.
Here, we remember ten such actors whose contributions to the show remain unforgettable, even if their passing might have gone unnoticed by many.
1. Dearon “Deezer D” Thompson
Dearon “Deezer D” Thompson was a vibrant part of ER’s ensemble, portraying Nurse Malik McGrath in nearly 200 episodes. Known for his infectious energy and charisma, Deezer D brought warmth to the emergency room’s hectic environment. Fans loved his relatable character and the way he balanced humor with the show’s intense moments.
Beyond his role on ER, Deezer D was a talented musician and motivational speaker. His sudden passing in 2021 shocked fans and colleagues alike. He remains in the hearts of many, remembered for both his on-screen presence and off-screen positivity.
2. Betty A. Bridges
Betty A. Bridges was a beloved actress known for her roles in Good Times and 2 Broke Girls. Her stint on ER showcased her versatility and depth as an actress. Though her role might have been brief, she left a lasting impression with her nuanced performance.
In addition to her acting career, Betty was a dedicated mentor, helping young actors navigate the industry. Her passing in 2024 marked the end of a storied career filled with memorable performances. Her legacy continues through the countless performers she inspired and guided throughout her life.
3. Jossara Jinaro
Jossara Jinaro’s guest appearance on ER was just one facet of her diverse acting career, which included roles on The Young and the Restless. Known for her striking presence and emotional depth, Jossara always captivated audiences.
Her artistic journey was marked by a passion for storytelling and a commitment to her craft. Sadly, Jossara passed away in 2022, leaving behind a legacy of powerful performances. Her work continues to inspire both viewers and fellow actors, reminding us of the impact one can have through dedication and talent.
4. Valerie Mahaffey
Valerie Mahaffey, an Emmy-winning actress, graced ER with her talent in a memorable guest role. Her ability to convey complex emotions in a few gestures set her apart as a performer. Valerie was also celebrated for her roles on Seinfeld and Northern Exposure.
Her career was a testament to her versatility and skill, capturing audiences across genres. Valerie’s passing in 2025 was a significant loss to the entertainment world, but her contributions continue to be celebrated. She remains an inspiration to aspiring actors for her commitment to excellence.
5. Red Buttons
Comedy legend Red Buttons brought his iconic humor to ER as Jules Rubadoux. Known for his quick wit and memorable one-liners, he added a unique flavor to the show. Red’s career spanned decades, with notable roles in both film and television.
His work on ER demonstrated his range, proving that comedy and drama could coexist beautifully. Red passed away in 2006, leaving behind a legacy of laughter and joy. Fans continue to cherish his performances, remembering him as a pioneer of comedy who could also deliver poignant dramatic moments.
6. Tom Bosley
Tom Bosley, widely recognized as Howard Cunningham from Happy Days, made a memorable guest appearance on ER. His warm demeanor and fatherly presence were instantly recognizable. Tom’s performance added depth and charm to the episode.
Outside of acting, Tom was a beloved figure in the industry, known for his kindness and professionalism. His passing in 2010 was felt deeply by fans and colleagues alike. He is remembered not only for his iconic roles but also for his genuine spirit, which left a lasting impact on those who knew him.
7. George Plimpton
George Plimpton, famed journalist and writer, made guest appearances on ER that showcased his unique charisma. His foray into acting added an intriguing dimension to his multifaceted career. George’s presence on the show was both unexpected and delightful.
A man of many talents, George was known for his adventurous spirit and intellectual pursuits. His passing in 2003 marked the end of an era, but his legacy continues through his literary contributions and brief yet impactful acting roles. George remains a symbol of curiosity and exploration in the arts.
8. Ernest Borgnine
Ernest Borgnine, an acclaimed actor with a career spanning over six decades, guest-starred in ER’s series finale. His powerful performance added a layer of gravitas to the episode, leaving a memorable mark on the series.
Known for his roles in classics like Marty and The Wild Bunch, Ernest brought authenticity and depth to every character. He passed away in 2012, but his contributions to film and television endure. Ernest’s work continues to be celebrated, inspiring actors with his dedication to his craft and his ability to breathe life into diverse characters.
9. Ray Liotta
Ray Liotta’s guest appearance on ER earned him a Primetime Emmy Award, a testament to his exceptional talent. Known for his intense roles, Ray brought a raw energy to the show that captivated viewers. His performance was a masterclass in dramatic acting.
Beyond ER, Ray was renowned for his role in Goodfellas, where his portrayal of Henry Hill became iconic. Ray’s passing in 2022 left a void in the industry, but his work continues to inspire actors and audiences alike. His legacy is one of passion and intensity, traits that defined his career.
10. William Hurt
Oscar-winning actor William Hurt made a notable guest appearance on ER, showcasing his remarkable range and depth. His presence on the show was a highlight, bringing a nuanced performance that resonated with audiences.
William was celebrated for his roles in films like Kiss of the Spider Woman and Broadcast News, where his talent shone brightly. He passed away in 2022, leaving behind a legacy of powerful performances. William’s work remains influential, inspiring generations of actors to pursue their craft with dedication and creativity.