Tid Pao Souphanousinphone is Connie's cousin and Khan’s niece from Los Angeles, California. In 2002, she was forced to move to Arlen, Texas to live with her uncle, Kahn Souphanousinphone due to (according to Connie) a bad academic record.
Upon arriving in Arlen, she vandalized Hank Hill's fence multiple times with her street name, Q-Bag and met Bobby Hill. A science fair was coming up and Bobby asked her to be his partner; at this point she knew she could make him do anything she asked. While she had Bobby under her hold, she had him purchase cough syrup from a drugstore and steal multiple propane tanks from Strickland Propane by telling him that it was for their science project "How to Make Candy", when in reality, she was making methamphetamines. She had everything ready and went out to make a deal with a truck driver. When she returned, Bobby had already brought the project to the school science fair. She went to the school and after seeing Officer Soto, left the unaware Bobby with the drugs. Connie saves Bobby by destroying the meth equipment with a potato cannon.
Throughout the episode, it's revealed that Tid Pao planned to use the profits from her drug deal to repay a street gang whom she stole drugs from (the real reason she was sent to Arlen) and to fly first class back to Los Angeles. For unexplained reasons, her scam was uncovered and she was caught (it's very likely Connie and/or Bobby reported her crimes (i.e the propane robbery) to their parents and/or the Arlen Police, resulting in arrest). She was last seen shoveling manure on a dairy farm owned by Kahn's other brother in rural Wisconsin. This uncle warned Tid Pao that he was her last chance to do right and if she caused any more trouble, she would be sent to her grandmother in Laos, which was far less luxurious than the United States.
She was voiced by famed actress from Charlie's Angels and Elementary star Lucy Liu.
- In the episode Just Another Manic Kahn-Day, her graffiti Q-Bag can be seen spray painted on the fence when the guys go get Kahn's medication from Octavio.
- On the original airing of the episode, she said, "pig fucker". In the re-runs, she said, "pig farmer".
- In Bad Girls, Bad Girls, Whatcha Gonna Do Bobby looks out of his bedroom window to see Tid Pao go in to Kahn's shed. Bobby's bedroom is not on that side of the house.