Poor, poor Howard. The CEO of Hamlin, Hamlin & McGill played by Patrick Fabian is Jimmy's main adversary in Season 1 of "Better Call Saul" until it's revealed that it was Chuck who was behind Howard's refusal to hire Jimmy all along. Howard tries his best to regain Jimmy's confidence and trust throughout the series, particularly after he blames himself for Chuck's suicide and subsequently seeks therapy while he attempts to help HHM recover from a financial crisis.
However, some of Howard's slights against Jimmy can't be outdone, especially when Chuck's little brother slowly morphs into the criminal lawyer Saul Goodman. By the end of Season 5, both Jimmy and Kim have it out for Howard, deciding to pull their greatest con to simultaneously destroy his reputation and force a settlement for the Sandpiper class action suit, netting them a million-dollar profit. Despite the lengths they go to, Howard's not easily scammed and smells Jimmy's ruse from a mile away, leading him to hire a private investigator.
Unfortunately, as much as Howard tries to prevent catastrophe, Jimmy and Kim are simply three steps ahead of him, and Howard blindly falls into their trap, making himself publicly look like a cocaine addict. His last action of showing up to their apartment to chew them out is, however, his most foolish moment yet. As Fabian told Vanity Fair, his character is "literally at the wrong place at the wrong time" when Lalo Salamanca arrives to talk to his lawyers and ends up shooting Howard.