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WhatToWatch
Entertainment
Sarabeth Pollock

The Irrational season 2: release date, cast, plot and everything we know

Jesse L. Martin sits at a table in The Irrational.

Following the success of The Irrational season 1, NBC quickly ordered up another season of the crime drama that centers on Professor Alec Mercer (Jesse L. Martin), behavioral scientist and leading expert on human behavior based on the book Predictably Irrational by Dan Ariely. 

While the 2024 fall television landscape is once again peppered with procedurals, The Irrational season 2 is set to offer a sexy, fresh twist on the genre. Watching Professor Mercer solving crimes is just as enjoyable as watching him navigate his personal life. Mercer is the guy the police and governmental agencies call when they're trying to figure out the "why" as much as the "how" of a crime; through behavioral analysis, Mercer and his team are always able to provide key insight into the toughest of cases.

Here's everything we know about The Irrational season 2.

The Irrational season 2 release date

The Irrational season 2 premiere is Tuesday, October 1. The series will follow The Voice on Tuesdays in the 10 pm ET/PT time slot on NBC, with new episodes becoming available the following day on Peacock

We don't have a release date for UK viewers just yet, but as soon as we have more information we'll have it for you right here. 

If you've cut the cord, you can watch NBC through DirecTV Stream, Hulu with Live TV, Fubo, Sling TV and YouTube TV

The Irrational season 2 plot

Here's the official synopsis of The Irrational season 2 from NBC: 

"The Irrational  follows world-renowned professor of behavioral science Alec Mercer (Jesse L. Martin) as he lends his unique expertise to high-stakes cases and mysteries. His insight and unconventional approach to understanding human behavior lead him to work alongside varying clients ranging from the FBI to everyday people caught in perplexing situations desperate for answers. With the help of his trusted team and social-science experiments, Alec solves crimes and uncovers the truth to answer intriguing, and irrational, questions. "

The Irrational season 2 cast

The Irrational season 2 features Jesse L. Martin (Rent, The Flash) as Professor Alec Merce, Maahra Hill (Delilah) as Marisa Clark, Travina Springer (Ms. Marvel) as Kylie, Molly Kunz (Widows) as Phoebe and Arash DeMaxi (Partner Track) as Rizwan. 

Jesse L. Martin in The Irrational (Image credit: Sergei Bachlakov/NBC)
Travina Springer in The Irrational (Image credit: Sergei Bachlakov/NBC)
Molly Kunz in The Irrational (Image credit: Sergei Bachlakov/NBC)
Arash DeMaxie in The Irrational (Image credit: Sergei Bachlakov/NBC)
Maahra Hill in The Irrational (Image credit: Sergei Bachlakov/NBC)

The Irrational season 2 trailer

There's no trailer for The Irrational season 2 just yet, but as soon as one is available we'll have it for you right here. 

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