Sylvester "Porky" Brockway is a fictional child character in the long-running American television series Lassie. The character was played by child actor Joey D. Vieira under the stage name "Donald Keeler". The chubby, beanie-wearing Porky is best friends with the show's star human character, eleven-year-old Jeff Miller played by Tommy Rettig. Porky is a farm boy and the son of Matt and Birdie Brockway. He has a basset hound called Pokey who generally accompanies him on various adventures with Jeff and Lassie. Porky debuts in the first season episode, "The Lion", and makes his farewell appearance in the fourth season episode, "Timmy's Family". Porky, his parents and several other characters were cut from the plot when stars Rettig and Jan Clayton were dropped in 1957 after the death of co-star George Cleveland.