Why did Eric Dane die?

Eric Dane’s final months and cause of death

Eric Dane, best known as Dr. Mark “McSteamy” Sloan on Grey’s Anatomy and for later work on Euphoria, died on Feb. 19, 2026 at the age of 53 following a public battle with amyotrophic lateral sclerosis (ALS). He went public with his diagnosis in April 2025 and spent the ensuing months documenting a rapid progression of the disease while continuing to work and advocate.

After the diagnosis Dane reported significant physical decline over 2025: by midyear he had lost function in his right arm and hand, and by the autumn he was using a wheelchair. He continued to act where possible — he filmed scenes for the upcoming third season of Euphoria — and made several public appearances to raise awareness about ALS. In interviews and at a virtual I AM ALS panel he described the disease in stark terms and vowed to “combat” it while maintaining his commitment to family and work.

Key timeline

• April 2025: ALS diagnosis announced publicly.
• June–October 2025: Documented loss of motor function and increased mobility needs.
• Jan. 24, 2026: Withdrew from a planned gala appearance where he had been slated to be honored.
• Feb. 19, 2026: Died at 53.

Dane’s wife, Rebecca Gayheart, withdrew a prior divorce filing after his diagnosis, signaling a family decision to prioritize unity during his illness. Colleagues and fans have paid tribute to both his on-screen roles and his willingness to speak candidly about a disease that remains fatal and difficult to treat. His public timeline — from diagnosis to death in under a year — underscores the aggressive nature of some ALS cases and has renewed conversations about research, care and support for patients and their families.