|Hair Color||Frank: Brown Joe: Black|
|Voiced by||Trey Parker, Matt Stone|
|First Appearance||Mystery of the Urinal Deuce|
These two young amateur detectives, Frank and Joe Hardly, follow their raging clues to help solve the mystery of who took the dookie in the boys' room urinal. With the help of their father and Kyle Broflovski they eventually uncover the true perpetrators of both the boy who took a dookie in the urinal and the September 11th terrorist attacks. Their books sell millions of copies, and Kyle is known to be a fan of them.