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.
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The peak run. Top 40% of seasons by average rating — consecutive, with an average of 7.62.
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Tim Roth
Cal Lightman
Kelli Williams
Gillian Foster
Monica Raymund
Ria Torres
Brendan Hines
Eli Loker
Hayley McFarland
Emily Lightman
All 48 episodes plotted by IMDb rating
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13 episodes • 2009Avg: 6.9Valley of Despair
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | Pilot | Jan 21, 2009 | 6.8 |
| 2 | Moral Waiver | Jan 28, 2009 | 7.2 |
| 3 | A Perfect Score | Feb 4, 2009 | 7.3 |
| 4 | Love Always | Feb 18, 2009 | 7.8 |
| 5 | Unchained | Mar 4, 2009 | 7.5 |
| 6 | Do No Harm | Mar 11, 2009 | 7.1 |
| 7 | The Best Policy | Mar 18, 2009 | 6.5 |
| 8 | Depraved Heart | Apr 1, 2009 | 6.4 |
| 9 | Life Is Priceless | Apr 8, 2009 | 6.3 |
| 10 | Better Half | Apr 22, 2009 | 6.4 |
| 11 | Undercover | Apr 29, 2009 | 6.4 |
| 12 | Blinded | May 6, 2009 | 7.9 |
| 13 | Sacrifice | May 13, 2009 | 6.6 |
22 episodes • 2009Avg: 7.4
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | The Core of It | Sep 28, 2009 | 6.6 |
| 2 | Truth or Consequences | Oct 5, 2009 | 6.9 |
| 3 | Control Factor | Oct 12, 2009 | 6.2 |
| 4 | Honey | Oct 19, 2009 | 6.6 |
| 5 | Grievous Bodily Harm | Oct 26, 2009 | 6.6 |
| 6 | Lack of Candor | Nov 9, 2009 | 6.6 |
| 7 | Black Friday | Nov 16, 2009 | 7.3 |
| 8 | Secret Santa | Nov 23, 2009 | 7.4 |
| 9 | Fold Equity | Nov 30, 2009 | 7.9 |
| 10 | Tractor Man | Dec 14, 2009 | 8.0 |
| 11 | Beat The Devil | Jun 7, 2010 | 8.6 |
| 12 | Sweet Sixteen | Jun 14, 2010 | 8.1 |
| 13 | The Whole Truth | Jun 21, 2010 | 6.5 |
| 14 | React to Contact | Jun 28, 2010 | 8.1 |
| 15 | Teacher and Pupils | Jul 12, 2010 | 8.3 |
| 16 | Delinquent | Jul 19, 2010 | 8.1 |
| 17 | Bullet Bump | Jul 26, 2010 | 8.1 |
| 18 | Headlock | Aug 2, 2010 | 7.9 |
| 19 | Pied Piper | Aug 16, 2010 | 8.3 |
| 20 | Exposed | Aug 23, 2010 | 6.7 |
| 21 | Darkness and Light | Aug 30, 2010 | 8.3 |
| 22 | Black and White | Sep 13, 2010 | 6.7 |
13 episodes • 2010Avg: 7.6Golden Era
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | In the Red | Oct 4, 2010 | 7.5 |
| 2 | The Royal We | Oct 11, 2010 | 7.9 |
| 3 | Dirty Loyal | Oct 18, 2010 | 8.2 |
| 4 | Double Blind | Oct 25, 2010 | 7.4 |
| 5 | The Canary's Song | Nov 8, 2010 | 7.8 |
| 6 | Beyond Belief | Nov 15, 2010 | 8.2 |
| 7 | Veronica | Nov 22, 2010 | 8.2 |
| 8 | Smoked | Nov 29, 2010 | 7.4 |
| 9 | Funhouse | Jan 10, 2011 | 8.4 |
| 10 | Rebound | Jan 10, 2011 | 6.8 |
| 11 | Saved | Jan 17, 2011 | 8.3 |
| 12 | Gone | Jan 24, 2011 | 6.1 |
| 13 | Killer App | Jan 31, 2011 | 6.8 |
