Marty Taylor

Martin "Marty" Taylor (played by William O'Leary) — Marty (born in 1964) is Tim's younger brother by ten years. It's been mentioned that, growing up, since their father died when Tim was 11 and Marty was 1, Tim was just as much of a father to him as a brother. He is often seen bouncing from job to job, unable to hold a steady career. In his earliest appearance, Marty was married to a woman named Nancy, and they had twin baby girls, Gracie and Claire played by Haley Evans and Holly Evans. Much later in the series, Nancy divorced Marty, and he and the girls moved in with Tim's family.