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| Episode credited cast: | |||
| Penn Jillette | ... | Himself - Host | |
| Teller | ... | Himself - Host | |
| Gabrielle Dennis | ... | Herself - Lie Detector Test Subject | |
| Rest of cast listed alphabetically: | |||
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Billy Joe Brewer III | ... | Himself |
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Larry DiPaola | ... | Himself |
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George Maschke | ... | Himself - Translator |
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Mike | ... | Himself |
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Doug Williams | ... | Himself - Certified Police Polygraph Examiner |
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Al Zelicoff | ... | Himself |
Why the polygraph sometimes gives false positives? More importantly - how do you learn to cheat the machine?