Michael "Mike" Ehrmantraut is an American career criminal, Marine Corps veteran, and former Philadelphia police officer. Calm and calculating, Mike later became a parking garage attendant, private investigator, hitman, assassin, and violent fixer for drug traffickers to financially support his family (his daughter-in-law Stacey and granddaughter Kaylee). He worked for both Gustavo Fring and Saul Goodman as a private investigator, head of security, cleaner, fixer, and hitman. Mike has extensive k