George's Brother

Though never seen, George has mentioned his brother in two episodes, both in season three:

"The Parking Space"
George: I don't know, I just can't. Nobody in my family can pay for parking, it's a sickness. My father never paid for parking; my mother, my brother, nobody. We can't do it.

"The Suicide"
RULA (psychic): Who’s Pauline?
GEORGE: Pauline?...Wait a minute. I got it. My brother once impregnated a woman named Pauline.