Louis 'Lou' Merkel (unconfirmed spelling Merkhell) is a sergeant with the Springfield Police Department and by far, the most intelligent and competent officer of the Springfield Police. He is under the command of Police Chief Clancy Wiggum, and often takes the time to point out Wiggum's mistakes (often while a crime or the pursuit of a criminal—is still in progress, therefore distracting them all from the crime). As stated before, Lou is the most competent police officer, unlike Eddie or Wiggum. Lou speaks more than his counterpart Eddie. Even though he rarely comes up, when he does he is in a police uniform. Lou once said he wants to leave the force as there is more money in private security; nothing ever becomes of this, though. His favorite on duty beverage is beer. (Source: Fandom.com, CC BY-SA)