12 characters in Better Call Saul
A former Philadelphia police officer who relocates to Albuquerque after the death of his son Matt, a fellow cop. Mike carries the burden of being a dirty cop who corrupted his honest son to protect him, only to see Matt murdered anyway by corrupt partners Hoffman and Fensky. He seeks revenge and ultimately kills the men responsible for his son's death.
Mike's daughter-in-law, the widow of his son Matt and mother to Kaylee. She works in healthcare and struggles with grief while raising her daughter alone in Albuquerque. She harbors suspicions about the circumstances of Matt's death and eventually calls Philadelphia police to investigate, creating tension with Mike who tries to protect her from the truth.
A lawyer who represents Mike during the police interrogation. Though he initially tries to maintain ethical standards, Mike manipulates him into helping steal evidence, revealing Jimmy's susceptibility to corruption that will eventually transform him into Saul Goodman.
A young Philadelphia detective investigating the deaths of officers Hoffman and Fensky. He's suspicious of Mike's involvement and timing, representing the law closing in on Mike's vigilante justice.
A corrupt Philadelphia police sergeant who orchestrated the murder of Matt Ehrmantraut. He leads the criminal operation involving kickbacks and ultimately becomes Mike's primary target for revenge, representing the systemic corruption that destroyed Mike's family.
A veterinarian who provides medical services to criminals, treating Mike's gunshot wound with no questions asked. He offers Mike criminal work opportunities, representing the gateway into Albuquerque's gray market economy.
An older Philadelphia detective and former colleague of Mike's who comes to Albuquerque to investigate the Hoffman and Fensky murders. He shows more sympathy for Mike's grief and alcoholism than his younger partner.
A bartender at McClure's Bar in Philadelphia who serves Mike during his final night in the city. He represents the working-class community Mike is leaving behind and shows concern for Mike's safety.
Matt Ehrmantraut's corrupt police partner who tried to involve Matt in illegal kickback schemes. Along with Sergeant Fensky, he murdered Matt when they perceived him as a threat to their operation, making him a target for Mike's revenge.
A taxi driver with a criminal background who helps Mike navigate Albuquerque's underworld. He represents the kind of morally flexible contacts Mike can utilize when he needs to operate outside the law.
Mike's young granddaughter, around five years old, who lost her father Matt. She represents innocence and joy in Mike's life, providing him with motivation to be present for his family despite his dark past.
An Albuquerque police detective who observes the interrogation to ensure proper procedure is followed. He serves as a neutral authority figure overseeing the interaction between the Philadelphia detectives and Mike.