His performance keeps the repetitive cat-and-mouse plotting from falling into tedium. Luckily, he's surrounded by enough compelling supporting actors, including David Costabile (Breaking Bad), Toby Leonard Moore (Daredevil), and Condola Rashād (Smash), to give him worthy collaborators and rivals to feed on.
As the tension builds in the show's sixth episode, which finds him even closer to catching Axe, he draws you in with his unwavering, rabid intensity. Instead of being bound and gagged, Billions needs to let Giamatti unleashed.
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Dan Jackson is a staff writer at Thrillist Entertainment and saw Wall Street: Money Never Sleeps in a movie theater by himself. He's on Twitter: @danielvjackson.