| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 J.J. Abrams | Crew | Production | Executive Producer | 4 |
 Mark Monroe | Crew | Directing | Director, Executive Producer | 2 |
 Paul Crowder | Crew | Directing | Director, Editor | 3 |
 Wolfgang Held | Crew | Camera | Director of Photography | 4 |
 Giacomo Ambrosini | Crew | Editing | Editor | 4 |
 Louise Runge | Crew | Production | Post Producer | 4 |
 Sean M. Stuart | Crew | Production | Executive Producer | 4 |
 Ian Hultquist | Crew | Sound | Music | 4 |
 Glen Zipper | Crew | Production | Executive Producer | 4 |
Ben Stephenson | Crew | Production | Executive Producer | 4 |
Paul McGuire | Crew | Production | Producer | 4 |
 Vinnie Malhotra | Crew | Production | Executive Producer | 4 |
Maren Domzalski | Crew | Production | Producer | 4 |
Rachel Rusch Rich | Crew | Production | Executive Producer | 4 |
Kevin Lincoln | Crew | Production | Co-Executive Producer | 4 |
 Budd Hopkins | Cast | Actor | Self - Artist & Ufologist (archive footage) | 1 |
 Charlie Rose | Cast | Actor | Self (archive footage) | 1 |
 Harry S. Truman | Cast | Actor | Self (archive footage) | 1 |
 Tom DeLonge | Cast | Actor | Self (archive footage) | 1 |
 Barack Obama | Cast | Actor | Self (archive footage) | 2 |
 Brandon Harris | Cast | Self - Contributor, The New Yorker | 2 | |
John Greenewald Jr. | Cast | Self - The Black Vault | 4 | |
 George Knapp | Cast | Actor | Self - Investigative Journalist | 3 |
 John E. Mack | Cast | Actor | Self - Professor of Psychiatry, Harvard (archive footage) | 2 |
 Luis Elizondo | Cast | Actor | Self (archive footage) | 2 |
 David Fravor | Cast | Actor | Self - Former U.S. Navy Pilot, USS Nimitz Strike Group (voice) | 1 |
 Robert Bigelow | Cast | Actor | Self (archive footage) | 3 |
Betty Hill | Cast | Self (archive footage) | 1 | |
 Richard Doty | Cast | Actor | Self - Former Air Force Intelligence Officer | 2 |
 Jacques Vallée | Cast | Actor | Self (archive footage) | 1 |
Fife Symington | Cast | Actor | Self - Governor of Arizona (1991-1997) | 1 |
 Harry Reid | Cast | Actor | Self - Former Senate Majority Leader | 2 |
 Leslie Kean | Cast | Actress | Self - Investigative Journalist | 4 |
 Harold E. Puthoff | Cast | Actor | Self (archive footage) | 2 |
Diana Walsh Pasulka | Cast | Self - Professor of Religious History, UNC Wilmington | 3 | |
Kevin Day | Cast | Self - Chief Radar Operator, USS Princeton | 3 | |
Gary Voorhis | Cast | Actor | Self - Radar Operator, USS Princeton | 2 |
 John B. Alexander | Cast | Actor | Self - U.S. Army Intelligence & Security Command, Fort Meade | 1 |
Lisil Field | Cast | Actress | Self (archive footage) (uncredited) | 1 |
| Person | Type | Job | Role(s) | Episodes |
