Lie to Me (dizi)
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Dr. Cal Lightman (Tim Roth), beden dili ve özellikle mikroifadeler alanında uzmanlaşmış dahi bir psikologdur ve lokal ve federal suçların soruşturmalarını uygulamalı psikoloji yöntemleri ile destekleyen Ligthman Group şirketinin kurucusudur. Çoğunlukla başkaları tarafından şüpheyle karşılansa da, Ligthman gerçeğe ulaşmak için gereken her türlü tekniği kullanmaktadır. Eşinden boşanmıştır ve kızının velayetini paylaşmaktadır. Gillian Foster'a karşı derin bir ilgisi vardır. Gençliğinde annesinin intihar etmesinin ardından Lightman mikroifadeleri keşfetmiş ve araştırmaya başlamıştır. There is evidence he was involved with British Intelligence. Lightman also mentioned interrogating IRA members, going as far as admitting he was fooled by a suspect's facial expressions that caused the murder of three people in a pub shortly after the interrogation. He has also admitted to being an MI6 intelligence agent during the Yugoslavia Wars in 1994 in an attempt to gain the trust of an intelligence agent that he was interrogating. The character is based on Dr. Paul Ekman, a notable psychologist and expert on body language and facial expressions at University of California, San Francisco.
Dr Gillian Foster (Kelli Williams), Dr. Lightman's meslektaşı ve The Lightman Group'tan iş arkadaşı. Her husband's lack of candor often challenges her open pact with Lightman: not to let their professional skill interfere with coworker's personal lives. So, when Cal believes her husband, Alec, is cheating on her, he simply ignores what he is seeing, much to Torres' dismay. It is later revealed that he was not, in fact, cheating on her, but was trying to overcome his drug addiction. Gillian had adopted a baby (Sophie) who was eventually returned to the birth mother. This character is based on Dr. Maureen O'Sullivan, emeritus professor of psychology at the University of San Francisco.
Brendan Hines as Eli Loker, initially an employee of The Lightman Group. Loker is academically educated and acquired his skills in "reading" people through practice. During season 1, he also adheres to Radical Honesty, and thus rarely lies, even if that makes him appear rude or undiplomatic. Lightman demoted him to an unpaid intern after, despite Foster's warnings, he divulged sensitive information to the SEC while working on a case. However, he is later promoted to vice president, which puts a rift in any developing relationship between him and Torres (the two had slept together once). He appears very dissatisfied with the Lightman group and searches for a new job.
Ria Torres (Monica Raymund), an employee of The Lightman Group, and a protegee of Dr. Lightman's, who was recognized as a "natural" while she was still working as a TSA agent. Torres was abused as a child, a common pattern among naturals. Though talented and loyal, she lacks academic training and sometimes lets her emotions cloud her judgment. She has a half sister who is in juvenile prison.
Emily Lightman (Hayley McFarland), Cal Lightman'ın genç kızı. She is under shared custody between her parents, and though she does not appreciate her father's ability to "read" her, she does not deny its merit for social screening. She shows a talent for "reading" people, like Foster and even her father. She has had a few boyfriends over the series that her father frequently scrutinizes. (1. sezonda yinelenen, 2. sezonda sürekli)
Ben Reynolds (Mekhi Phifer), Lightman Grubu'na soruşturmalarında yardımcı olan ve bunun için görevlendirilen bir FBI ajanı. Silahlı destek ve pratik görüşler sunar. Reynolds, her zaman Lightman'ın yöntemlerine katılmasa da çoğunlukla onların arkasında durur. (1. sezonda yinelenen, 2. sezonda sürekli)