The actor, who most people were introduced to on the TV show Soap in the late 70’s, passed away at the age of 89 on Tuesday.
Guillaume’s widow, Donna Brown Guillaume, confirmed the news to the Associated Press, noting that he had been battling prostate cancer.
Through the ’70s, Guillaume starred on episodes of All in the Family, The Jeffersons, and Good Times before appearing as Benson DuBois in Soap, which ran from 1977-1981. He then got his own spin-off in 1979 with Benson. The character earned Guillaume two Emmys over the years.