A former CIA operative's investigation into the Roswell crash arrives at a critical moment when the mysterious journal found among the possessions of Major Jesse Marcel undergoes a crucial test. As a US Army intelligence officer, Marcel was the first government official at the crash site. Investigator Ben Smith is taken to a secret location believed to be the real resting place of the airborne object, as a local archeologist finds evidence that a military cleanup may have taken place. A leading code-breaker continues his attempt to decipher the journal which may be written in a home-brewed code and contain hidden information about what happened at Roswell. And witnesses describe a series of bizarre events surrounding the now legendary crash, while an incredible new technology attempts to read words on a 70 year old photograph that may hold clues to the mystery: Did an extraterrestrial spaceship crash at Roswell?
| Name | Type | Role | |
|---|---|---|---|
| Ryan Carpenter | Producer | ||
| Peter Schmuhl | Producer | ||
| Kay Rothman | Producer | ||
| Ruth Reiss | Producer | ||
| Frank Kaufmann | Guest Star | Self - Staff Sergeant, U.S. Army (1942-1945) | |
| Ben Smith | Guest Star | Self - Investigator/Former CIA Operative | |
| Charles Moore | Guest Star | Self - Lead Engineer, Project Mogul | |
| Sappho Henderson | Guest Star | Self - Wife of Oliver Henderson USAAF pilot | |
| Gene Cooper | Guest Star | Self - Founder & CEO. Gigamacro | |
| John Haynes | Guest Star | Self - Colonel, US Air Force, 1997 | |
| Joe Pappalardo | Guest Star | Self - Aviation Expert & Journalist | |
| Kevin D. Randle | Guest Star | Self - Author, Roswell in the 21st Century | |
| Tonya Reiman | Guest Star | Self - Body Language Expert | |
| Mary Groode | Guest Star | Self - Daughter of Oliver Henderson USAAF pilot | |
| Barbara Duggar | Guest Star | Self - Sheriff Wilcox's Granddaughter | |
| John Marcel | Guest Star | Self - Grandson of Major Jesse Marcel | |
| Robert Shirkey | Guest Star | Self - Asst. Group Operations Officer, 509th | |
| Jesse Marcel | Guest Star | Self - Major USAF (Ret), In Search Of ..., UFO Cover Ups (1980) | |
| Craig Bauer | Guest Star | Self - Professor of Mathematics, York College of Pennsylvania | |
| Don Schmitt | Guest Star | Self - Author, Witness to Roswell | |
| Jennifer Naso | Guest Star | Self - Forensic Document Examiner | |
| David Soucie | Guest Star | Self - Author, Malaysia Airlines Flight 370 | |
| Glenn Dennis | Guest Star | Self - Roswell Mortician | |
| Denice Marcel | Guest Star | Self - Granddaughter of Major Jesse Marcel | |
| Steven Schiff | Guest Star | Self - New Mexico, Congressman (1989-1998) | |
| Frank Kimbler | Guest Star | Self - Geologist, New Mexico Military Institute | |
| Jesse Marcel III | Guest Star | Self - Grandson of Major Jesse Marcel | |
| Joel N. Myers | Guest Star | Self - Founder & CEO. Accuweather | |
| Walter Haut | Guest Star | Self - Public Information Officer, 509th, Secret History: The Roswell Incident (1995) | |
| Brenda McClurkin | Guest Star | Self - Head, Special Collections, University of Texas at Arlington Libraries | |
| Richard L. Weaver | Guest Star | Self - Colonel, USAF (Ret) 1969-1997 | |
| Larry Landsman | Executive Producer | ||
| Matt Ginsberg | Executive Producer | ||
| Jason Blum | Executive Producer | ||
| Michael Stiller | Executive Producer | for HISTORY | |
| John D'Auria | Executive Producer | ||
| Jeremy Gold | Executive Producer | ||
| Mike Powers | Executive Producer | ||
| Laurence Fishburne | Executive Producer | ||
| Marci Wiseman | Executive Producer | ||
| Karl Hollandt | Executive Producer | ||
| Robert Friedman | Executive Producer | ||
| Mary Lisio | Executive Producer | ||
| Tim Healy | Executive Producer | ||
| Terence Wrong | Executive Producer |