Dr. Cal Lightman
Dr. Cal Lightman leads the Lie to Me unit.
In charge of The Lightman Group, he's considered the leading deception expert in the world, a scientist that studies facial expressions and involuntary body language to discover both whether or not you're lying; and the reason for the lie.
Martin Walker: A good chess player thinks five moves ahead.
Cal Lightman: Great chess players only think one move ahead, but it's always the right move.
The only way three people can keep a secret is if two of them are deadCal