Matthew Cowles was found dead Thursday, May 22, at the age of 69, The Hollywood Reporter confirms.
Cowles was best known for his role as Billy Clyde Tuggle on "All My Children," which he played for more than four decades, earning two daytime Emmy nominations over the course of his career. Other memorable work included a recurring part in HBO's "Oz" (2003) as well as a role in "Shutter Island" (2010).
On Friday morning, his manager Tsu Tsu Stanton took to Twitter to commemorate Cowles. "He was a very gifted and kind man who loved life and everyone," she wrote.
As THR notes, the cause of death was not immediately available.
Cowles is survived by his wife of more than 30 years, Emmy and Tony Award winner Christine Baranski, currently most closely associated with her role as Diane Lockhart on "The Good Wife."
CORRECTION: A previous version of this article overstated how long Cowles played the role of Tuggle, and incorrectly characterized Baranski as an Emmy nominee. Cowles appeared intermittently on "All My Children" from as early as 1977, and Baranski has won an Emmy.