Cop One is first seen when he, another cop, Bessie and Happy are on a police ride along. After seeing how disappointed Bessie is with the low amount of crime, he decides to stage a purse snatching to get her excited. They are in pursuit of a man stealing a purse, intentionally letting the man get away.
When Bessie asks if the lab has come back with any incriminating information, he replies it hasn't but will let Bessie know if anything comes up. He also gives the thief a dollar bill, surprising Bessie. Later, at the Donut Store, Bessie points a flashlight at the purse snatcher, where she finds out Cop One set it up to make her ride along more exciting.
However, it doesn't end there, as the purse snatching cop unmasks to reveal himself as Al Capone, and that Cop One was supposedly Bonnie of Bonnie and Clyde. Eventually, it's shown Cop One was tied up inside the John Dillinger disguise, unable to help Bessie.
Fortunately, Bessie successfully captured the chief's evil twin brother in addition to Bonnie and Clyde, having been the ones behind the purse snatching.
Cop One is a light skinned man with balding brown hair who is short and overweight. He wears black sunglasses, a blue police officer's uniform with gold buttons and insignia on his cap in addition to black shoes.
- He is unnamed in the episode; Cop One is used as this is how the character is credited.