The actor won a Daytime Emmy for his powerful performance as the villainous mobster Carlo Hesser in 1991.
A cause of death was not revealed.
My dear friend of many years, actor #ThomChristopher passed today, he wrote.

Thom Christopher as Carlo Hesser on ‘One Life to Live’.Kimberly Butler/ABC/Courtesy Everett
I trusted him and we worked together with an almost magic energy.
Im so grateful for the opportunity I had to experience that joy.
I will miss him always.
A great light has dimmed in my life.
And for all who knew him.
His powerful onscreen presence as the no-nonsense mobster earned him a Daytime Emmy for Outstanding Supporting Actor in 1992.
He was nominated for a second time in 1993.