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Here's When The Irrational Season 2 Premieres

Behavioral science sleuth Alec Mercer will be back for a second season of The Irrational. 

By Jill Sederstrom
Jesse L. Martin's Best Moments as Alec Mercer on The Irrational | NBC
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Jesse L. Martin's Best Moments as Alec Mercer on The Irrational | NBC
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Professor Mercer Teams Up with Bill Nye to Save a Stranded Astronaut | The Irrational | NBC
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The Most Dangerous Game | The Irrational | NBC
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Alec Sits Down with a Psychopath | The Irrational | NBC
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Typicality Experiment Proves Memories Can't Always Be Trusted | The Irrational | NBC
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Dr. Mercer's Dad Shows How to Win Over a Wary Witness | The Irrational | NBC
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Dr. Mercer Steers an Interrogation by Downplaying an Angry Curator | The Irrational | NBC
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Using Online K-Pop Drama to Explain Parasocial Relationships | The Irrational | NBC
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Mercer's Team Debates the Pros and Cons of Getting Soaked with Fish Guts | The Irrational | NBC
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Jesse L. Martin and the Cast Team Up for a Personality Quiz | The Irrational | NBC
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Professor Mercer Fakes a Favor to Befriend Victim's Ex | The Irrational | NBC
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Jesse L. Martin and the Cast Compete in a Surprise Pop Quiz | The Irrational | NBC

It’s only logical to get excited about this news: The Irrational has been renewed for a second season. Jesse L. Martin fans, get excited! 

How to Watch

Watch The Irrational Tuesdays at 10/9c on NBC and next day on Peacock

It looks like America’s favorite behavioral science professor will be reasoning his way through a whole new set of crimes next season after NBC announced renewals for The Irrational and Found

Here's what you need to know about The Irrational  Season 2: 

When will Season 2 of The Irrational premiere?

The Irrational Season 2 premieres fall 2024 and will take the Tuesdays at 10/9c slot on NBC. It premieres October 8! 

Lisa Katz, President, Scripted Content, for NBCUniversal Entertainment, credited the success of the crime drama, and that of fellow new series Found, to the talented teams that brought the shows together.

“These shows are a testament to the incredibly passionate work of our showrunners Nkechi Okoro Carroll (Found) and Arika Lisanne Mittman (The Irrational), both of whom have executed their visions flawlessly,” she said. “A huge thank you to the talented cast, producers and crews for their tireless commitment and dedication, which has clearly paid off with audiences making these series must-see television on both NBC and next day on Peacock.”

What is The Irrational

The Irrational follows college professor and behavioral science expert Alec Mercer as he uses his unique ability to understand human behavior to help law enforcement and others in his life who need his logic-based form of justice. 

Alec Mercer and Marisa, with her arms crossed, standing together looking at a character.

"I know people and why they do inexplicable things," Alec said in the trailer for the explosive first season.

Not to be confused with Bill Nye “the science guy,” Alec is the “behavioral science guy” using logic, reasoning, and a slew of psychological principles to bring down kidnappers, murderers, and even a cheating poker tournament organizer.

But while Alec has helped solve some of the most complicated crimes, the one he has yet to decipher is the one closest to home. Alec was severely burned two decades ago in a church bombing that claimed the lives of 13 people. As the sole survivor, Alec (with the help of his ex-wife, Marisa) are determined to root out those responsible for the deadly blast. 

Who stars on The Irrational

His unlikely bond (and possibly unfinished love story) with Marisa (Maahra Hill), a savvy FBI agent, isn’t the only connection Alec relies on to expose cunning criminals. 

RELATED: Psychological Tricks to Help You Ace Your Next Job Interview — Like the Ones in Jesse L. Martin's New Show

Alec also frequently enlists the help of his research assistants Phoebe (Molly Kunz) and Rizwan (Arash DeMaxi) and even occasionally relies on assistance from his tech-savvy sister Kylie (Travina Springer). 

Originally published Nov 30, 2023.

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