Robert "Rob" Owen McKenzie was a KGB illegal based in Boston. Without notifying the KGB, he married Joyce, and had a baby boy, Oscar. His secret family lived Philadelphia. According to Rob's Pennsylvania driver's license, he was 5 feet 7 inches tall and weighed 170 pounds, lived on Larchwood Avenue, and was born November 23, 1966.
Robert was substantially younger than Phillip, although the two were friends.