Roger Leir
Roger Krevin Leir was an American podiatric surgeon and ufologist best known as an investigator of alleged alien implants. Leir wrote books such as The Aliens and the Scalpel, and appeared on various radio and television shows, including Coast to Coast AM, claiming he had discovered proof of "non-terrestrial experimentation on man".
Moment of Contact
(Self (archive footage))
The Scientific Study of Alien Implants - Part 1
(Self)
The Scientific Study of Alien Implants - Part 2
(Self)
Watchers 8: Cloak of Secrecy
Watchers 1: UFOs are Real, Burgeoning, and Not Going Away
(Surgeon)
Watchers 2: Signs in the Heavens and the Earth
(Himself)
Watchers 4: On the Edge
(Himself)
Watchers 3: Fingerprints of the Supernatural
(Alien implants surgeon)
Watchers 5: Let Me In
Watchers 6: The Secret Cosmic War
Watchers 7: Physical Evidence
(Self)