He was 87 years old.

Im so blessed to have had these many years with him.

I will miss him every day.

ALL CROPS: 138379256 DAYS OF OUR LIVES – Pictured: (l-r) Joseph Mascolo as Stefano DiMera, Tanya Boyd as Celeste Perrault (Photo by NBC/NBCU Photo Bank via Getty Images)

Credit: NBC/NBCU Photo Bank via Getty Images

He appeared on over 1,600 episodes from the 80s to as recently as July 2016.

Our thoughts and prayers go out to his family during this difficult time.

Mascolo was born in 1929 in West Hartford, Conn. and initially pursued becoming a classical musician.

His first Broadway break was as understudy to Neville Brand inNight Lifeby Sidney Kingsley.

His real debut came in 1966 with Tyrone GuthriesDinner at Eight.

Mascolo was an understudy-turned-star of Jason Millers 1973 Pulitzer-winning play,That Championship Game.