What is actor john beck?

John Beck is an American actor born on January 28, 1943, in Chicago, Illinois. He began his acting career in the 1960s and made his first appearance on television in 1964 on the show "The Virginian". Throughout his career, he appeared in various TV shows and movies, including "The Mod Squad," "Dallas," and "Rollerball". He is perhaps best known for his role as Mark Graison on the TV series "Dallas". In addition to acting, Beck is also a licensed pilot and has worked as a commercial airline pilot. He has been married twice and has two children.