This is the untold story of The Exorcist, a chronicle of true events based on the priest's secret diary the world was not to see.
| Actor | Role |
|---|---|
| KKeith AgeSelf - Ghost Hunter | Self - Ghost Hunter |
 Christopher Saint BoothSelf - Filmmaker | Self - Filmmaker |
 Philip Adrian BoothSelf - Filmmaker | Self - Filmmaker |
| WWilliam BradshawSelf - Demonologist | Self - Demonologist |
| FFrancis X. ClearySelf - Priest | Self - Priest |
| TTimothy DuganFather Walter Halloran | Father Walter Halloran |
 Justin GoodrichThe Haunted Boy | The Haunted Boy |
| TTravis HedlandFlashback Soldier | Flashback Soldier |
| MMichael O'HearFather Raymond J. Bishop | Father Raymond J. Bishop |
| SSandra OatesSelf - Paranormal Investigator | Self - Paranormal Investigator |
| PPeter PalmisanoFather William Bowdern | Father William Bowdern |
| AArnold SpirtasSelf | Self |