Richard Tweak

Richard and Mrs. Tweek are (?) Tweek's parents. They used to run a coffee shop which had been started by Richard's father, but after a Harbuck's (a parody of Starbuck's) opened in South Park, they were given the job of running that particular store.

Richard's appearance
Richard wears a burgundy-red sweater, and grayish-blue jeans. His hair is short, curly, and dark brown. He has a rather long, pointed nose.

Mrs. Tweek's appearance
Mrs. Tweek wears an ankle-length turquoise dress with a white apron. Her hair is shoulder-length, straight, and light brown.

Family
They have a son, whom they call only by the family surname. This might mean that he doesn't like whatever they named him, and they have agreed to call him by his last name. Unlike either of his parents, Tweek has sunny blond hair. This could mean that he is a throwback to an older ancestor.

Richard has been shown to have a strong male-bonding with his son. Whenever Tweek is spazzing out over something, Richard will try his best to calm him down, by giving him coffee. Both parents seem unaware of the fact that caffeine is what causes Tweek's paranoia and hyperactivity in the first place. His mother, for instance, is convinced that he suffers from ADD. Richard apparently pays for therapy for his son, though it doesn't seem to have worked much.

Background
Nothing much has been given about their background, but in "Tweek vs. Craig", Richard tells Tweek that when he was in high school, all the young men were after Mrs. Tweek. But she only had eyes for Richard. One day, a football player who went by the name "Quib" wanted her, and he challenged Richard to a fight. Richard doesn't say what happened after that, other than that Quib moved away.