Professor Hannah Fry uses maths to gain edge on Celebrity Traitors

By the Editorial Team · Wednesday, September 23, 2026

Professor Hannah Fry is using statistical analysis to uncover behavioral patterns among players in the upcoming second series of BBC’s reality show The Celebrity Traitors, which returns October 1. Her mathematical approach aims to identify the strategies of deceptive contestants, though she acknowledges the unpredictability of the game may limit the effectiveness of her data-driven predictions.

Cambridge mathematician and broadcaster Professor Hannah Fry is applying statistical analysis and pattern recognition to gain an edge on the upcoming second series of the BBC’s reality competition The Celebrity Traitors. The series, which features 20 well-known participants competing in a game of deception, will return to BBC One on October 1.

Fry, who is also a TIME100 influential digital voice of 2026, has devoted significant time to studying previous iterations of the show in preparation for this year’s contest. Aiming to identify behavioral trends among the players—specifically the “Traitors” who attempt to sabotage the group—she has analysed data from past contestants to uncover statistically significant patterns.

Drawing inspiration from famed World War II codebreaker Alan Turing, whose work on the Enigma machine was instrumental in deciphering German communications, Fry hopes to apply similar mathematical methods to decode player strategies. “There is a pattern in the way that Traitors behave,” she said, pointing to examples such as the so-called “burn vote” tactic, where a Traitor casts a vote against a player unlikely to attract attention in the early rounds. She noted that last year’s participant Cat Burns was a strong example of this strategy.

However, Fry acknowledged the inherent challenges in using data to predict outcomes in a game often marked by unpredictable behavior. “The Faithfuls are such an absolute mess,” she explained, referring to the loyal players who try to identify the Traitors. “They are so all over the place that it’s really hard to pick out what the signal is.” She added that while she has extensive spreadsheets and numerical insights at her disposal, she remains uncertain about how much they will ultimately influence her gameplay.

The series is hosted by Claudia Winkleman and features a cast including Maya Jama, Jerry Hall, Richard E. Grant, and Ross Kemp. Fry, 42, who has a background in mathematics and computer science, has also hosted several BBC programs such as The Secret Genius of Modern Life and AI Confidential. She said she is embracing her role as the “nerd quota” for the season and is approaching the competition with a mix of analytical rigor and humility.

The Celebrity Traitors will air on BBC One at 8 p.m. beginning October 1.

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