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".
The Scientific Study of Alien Implants - Part 2
(Self)
The Scientific Study of Alien Implants - Part 1
(Self)
Moment of Contact
(Self (archive footage))
Watchers 8: Cloak of Secrecy
Watchers 2: Signs in the Heavens and the Earth
(Himself)
Watchers 3: Fingerprints of the Supernatural
(Alien implants surgeon)
Watchers 4: On the Edge
(Himself)
Watchers 1: UFOs are Real, Burgeoning, and Not Going Away
(Surgeon)
Watchers 6: The Secret Cosmic War
Watchers 5: Let Me In
Watchers 7: Physical Evidence
(Self)