© 2026 The Couch Critic
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"They're undeceivable."
The world's leading deception researcher, Dr. Cal Lightman, studies facial expression, body language and tone of voice to determine when a person is lying and why, which helps law enforcement and government agencies uncover the truth. But his skills also make it easier for him to deceive others.
592 Cast Members
Tim Roth
Cal Lightman
48 Episodes
Kelli Williams
Gillian Foster
48 Episodes
Monica Raymund
Ria Torres
48 Episodes
Brendan Hines
Eli Loker
48 Episodes
Hayley McFarland
Emily Lightman
40 Episodes
Mekhi Phifer
Ben Reynolds
24 Episodes
Kristen Ariza
Heidi
10 Episodes
Monique Gabriela Curnen
Detective Sharon Wallowski
8 Episodes
Jennifer Marsala
Anna
8 Episodes
Jennifer Beals
Zoe Landau
6 Episodes
Tim Guinee
Alec Foster
4 Episodes
Sean Patrick Thomas
Karl Dupree
3 Episodes
Brandon W. Jones
Liam
3 Episodes
Max Martini
Dave Burns
3 Episodes
Shoshannah Stern
Sarah
3 Episodes
Conor O'Farrell
Bernard Dillon
3 Episodes
Fahim Anwar
Charles
3 Episodes
Melissa George
Clara Musso
3 Episodes
Michael B. Jordan
Key
2 Episodes
Michael Dempsey
Farr
2 Episodes
