Aficionados of the late night talk show Late Night With Conan O'Brien will recognize William Preston for playing Carl "Oldy" Olsen on over 100 shows. Shortly after his death, the show dedicated Preston's last segment, in which he spoofed the running of the bulls in Pamplona, to the actor's memory. Before becoming an actor, he earned a bachelor's and a master's degree from Penn State University, then worked as a bookkeeper for a Philadelphia trucking company. Preston did not begin performing until he played in a local theatrical production of We Bombed in New Haven at age 50. Preston subsequently performed on Broadway, television, and in the occasional feature film. Later credits include Malatesta's Carnival (1973), The Fisher King (1992), and Waterworld (1995). In addition to his formal acting jobs, Preston worked in television commercials. ~ Sandra Brennan, Rovi