Career
He is best known for his role as Ascyltus in Federico Fellini"s 1969 film Fellini Satyricon. Keller received his dramatic training at Lee Strasberg"s prestigious Actors Studio in New New York His first stage engagement took him to In addition, Keller worked as a model and acted in the New York underground scene with Andy Warhol.
Keller was married to actress Kristina Saint Clair from 1981 to 1987 and had a daughter named Serena.
His last years were spent with his family in his native Atlanta, Georgia. He died there on January 20, 1997 of liver cancer.
Keller was exposed to Hepatitis C during the production of Hair, which is linked to liver cancer.