Prison Break star Stacy Keach has died aged 85.

The actor passed away on Tuesday (10.11.26) at his home in Magdalenka, Poland, following a "long and difficult battle with a serious heart condition and heart failure", according to his wife Malgosia Keach.

Malgosia said in a statement obtained by PEOPLE: "Stacy peacefully departed this world.

"He fought for so long, with extraordinary courage, determination and strength.

"He was a true warrior, facing his illness with the same remarkable spirit and resilience that defined his life.

"Stacy was not only a legendary actor, admired and loved by audiences the world over, but also my beloved husband, my companion and the heart of our family.

"His passing leaves an immeasurable emptiness in our lives.

"But his extraordinary spirit, his unforgettable voice and the love he gave so generously will remain with us forever."

The Mickey Spillane's Mike Hammer star was primarily raised in Los Angeles and kicked off his acting career in Hamlet in Central Park, in 1964.

He starred in several stage productions and earned a Tony nomination for Best Actor in a Play in 1969 for his appearance in Indians.

Stacy - the son of The Lone Ranger star Stacy Keach Sr. and older brother of The Long Riders actor James Keach - went on to appear in several TV projects and movies.

He was the narrator in Sir Ridley Scott's directorial debut, 1977 historical drama movie The Duellists, which featured Harvey Keitel and Albert Finney.

Stacy also appeared in 1998 movie American History X, as well as 2012's The Bourne Legacy, and Nebraska the following year.

Earlier in his career, he featured in films such as Fat City, and The Life and Times of Judge Roy Bean.

But he was best known for his TV work, most notably portraying the lead character in CBS series Mickey Spillane's Mike Hammer.

For his acting work as the private detective, Stacy earned a Golden Globe Award nomination for Best Actor - Television Series Drama.

He later won a Best Actor - Miniseries or Television Film Golden Globe for his role in miniseries Hemingway, in which he portrayed novelist Ernest Hemingway.

Stacy was also nominated for a Primetime Emmy Award for the portrayal.