Casting | Rôle |
|---|
| Bryant Gumbel | Self - Host |
| Jerry Betters | Self - Kecksburg Witness |
| Georgina Bruni | Self - Author, You Can't Tell the People |
| Bill Bulebush | Self - Kecksburg Witness |
| Edward Cabansag | Self - Airman 1st Class / Witness |
| Tom Carey | Self - Roswell Investigator |
| Richard Dolan | Self - Author, UFOs and the National Security State |
| Timothy Good | Self - Author, Above Top Secret |
| Ray Gulyas | Self - Flight Commander (as Master Sgt. Ray Gulyas USAF Ret.) |
| Charles I. Halt | Self - Former Deputy Base Commander / Witness |
| Gerry Harris | Self - Witness |
| Ray Hicks | Self - Prof. of Forestry, West Virginia University |
| Peter Hill-Norton | Self - Former Admiral of the Fleet (as Lord Hill-Norton) |
| Nancy Easley Johnston | Self - Daughter of Roswell Witness, Major Edwin Easley |
| Jesse Marcel Jr | Self - Son of Roswell Witness, Major Jesse Marcel |
| Monroe Nevels | Self - Witness (as Staff Sgt. Monroe Nevels USAF Ret.) |
| James Penniston | Self - Witness (as Tech. Sgt. Jim Penniston USAF Ret.) |
| Nick Pope | Self - Ministry of Defence UFO Desk, 1991-1994 |
| Nick Redfern | Self - Author, Strange Secrets |
| Peter Robbins | Self - Co-Author, Left at East Gate |
| Vincent Thurkettle | Self - Rendlesham Forrester, 1977-1986 |
| Larry Warren | Self - Airman 1st Class, 81st Sec. Police / Witness |
| Bill Weaver | Self - Kecksburg Witness |
| Marina L. Webb | Self - Witness |
| Roy J. Webb | Self - Witness |
| Gordon E. Williams | Self - Commander, 81st Tactical Fighter Wing |
| George W. Bush | Self (archive footage) (uncredited) |
| Winston Churchill | Self (archive footage) (uncredited) |
| Dwight D. Eisenhower | Self (archive footage) (uncredited) |
| Bruce Englund | Self - US Air Force (voice) (archive footage) (uncredited) |
| John F. Kennedy | Self (archive footage) (uncredited) |
| Harry S. Truman | Self (archive footage) (uncredited) |
