John B. Alexander
Séries
2023
Beyond Skinwalker Ranch
Self - Former N.I.D.S. Investigator
2021
OVNI
Self - U.S. Army Intelligence & Security Command, Fort Meade
2020
Les secrets du Skinwalker Ranch
Self - U.S. Army, Retired
2010
Alien Theory
Self - NIDS Science Advisory Board 1995-2001
2009