Mike is a former Philadelphia police officer who works for Gus Fring—and, on occasion, Saul Goodman—as a private investigator, head of security, cleaner, and hitman. While an officer in Philadelphia, he engaged in corrupt activities that indirectly led to the death of his son Matt, leading Mike to move to Albuquerque to watch over and financially support his daughter-in-law Stacey and granddaughter Kaylee through jobs in the criminal underworld. Mysterious old man, enjoys drinking when he can. 