Joseph Douglas Vieira, known as Joey D. Vieira (born April 8, 1944), is an American film and television actor. He began as a child actor using the professional name Donald Keeler playing chubby, beanie-wearing farm boy, Sylvester "Porky" Brockway in the first several seasons (1954–57) of TV's Lassie (retitled Jeff's Collie in syndicated reruns and on DVD). Vieira borrowed the professional surname from his aunt, Ruby Keeler, star of numerous Warner Bros. musicals in the 1930s.