<Li> Stacey Ehrmantraut (daughter - in - law) </Li> <P> Michael Ehrmantraut is a fictional character in Breaking Bad and its prequel spin - off series Better Call Saul . He is portrayed by Jonathan Banks in both series . </P> <P> Mike is a former Philadelphia police officer who, nominally, works for Los Pollos Hermanos as the head of corporate security; in reality, he is an assassin and enforcer in Gus Fring's crystal meth operation . On occasion, he works for Saul Goodman as a private investigator, cleaner, and fixer . For his portrayal, Banks was nominated for four Primetime Emmy Award for Outstanding Supporting Actor in a Drama Series; first for season 5 of Breaking Bad, and three more for season 1 - 3 of Better Call Saul, </P> <P> Mike's first onscreen appearance is in the final episode of the second season, after Jesse Pinkman's girlfriend Jane Margolis dies of asphyxiation . Mike is sent by Saul Goodman to destroy all evidence that could link Jane to either Jesse or Walter White . Mike instructs Jesse on what procedure to follow and what to tell paramedics and police when they show up: "I woke up, I found her . That's all I know ." When an emotionally devastated Jesse runs off to a crack house to lose himself, Walt has Mike drive him there to retrieve Jesse . </P>

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