Why Eric Dane Left Grey’s Anatomy According to His Memoir

Eric Dane Details the End of His Grey’s Anatomy Run in Posthumous Memoir

Eric Dane opens up about the behind-the-scenes realities of his departure from Grey’s Anatomy in his upcoming posthumous memoir, My Book of Days: A Memoir in Moments. Best known for playing Dr. Mark Sloan, or “McSteamy,” on the ABC medical drama, Dane reflects on his struggles with addiction and the financial factors he believes ultimately led to his exit from the series.

Battling Addiction and Changing Set Dynamics

Dane joined Grey’s Anatomy in 2006 and quickly established his character as a fan-favorite fixture of the hospital staff. However, as the actor details in book excerpts published by People, his personal health struggles began to impact his work environment around 2008 amid a relapse involving prescription painkillers. He recalls becoming withdrawn on set and noticing that his co-stars felt genuine concern for his well-being.

During those years on the show, series creator Shonda Rhimes approached him on multiple occasions to offer support and suggest taking a break. Dane reveals that he attended rehabilitation treatment five times during his tenure on the medical drama. By the end of Season 8 in 2012, Rhimes informed him that he would not return for the following season. While he acknowledges that his addiction issues complicated his standing with production, Dane maintains that his departure ultimately came down to finances.

Despite the enduring popularity of Dr. Mark Sloan, Dane writes that he had become too expensive for the series to justify keeping on the roster, rendering his character expendable.

Documenting Early ALS Symptoms and Family Support

Alongside reflections on his television career, the memoir addresses the early physical symptoms of his battle with ALS, which began on January 7, 2024. Dane first noticed a loss of dexterity while eating sushi with his children. He recalled that his right hand tingled and his fingers felt numb, thinking it was merely a nerve issue caused by excessive texting. Within three weeks, the grip failure worsened significantly.

Following nine months of medical evaluation, doctors confirmed the ALS diagnosis. Upon receiving the news, Dane reached out to his then-estranged wife, Rebecca Gayheart. The couple had filed for divorce after 14 years of marriage but never finalized the paperwork. Gayheart subsequently withdrew her divorce petition to support him through his illness. Dane and Gayheart shared two daughters, Billie and Georgia.

Dane passed away on February 19, 2026, at the age of 53 following his battle with ALS. Prior to his death, he recorded a final interview for Netflix’s Famous Last Words, which was released in February. My Book of Days: A Memoir in Moments is scheduled for release on November 3 through The Open Field, an imprint of Penguin Random House.