The Irrational cast is led by a mainstay of procedural crime television and supported by a collection of relatively unknown but talented actors. NBC's The Irrational premiered in September 2023 with one season consisting of 11 episodes. The story follows Alec Mercer, a renowned professor of behavioral psychology who has a singular insight into human nature. A scientist for hire, Mercer helps government entities, corporations, and industries solve their most troubling cases as something of a modern-day private investigator.

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