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".
Movie | The Scientific Study of Alien Implants - Part 2 | Self | 2025 |
Movie | Moment of Contact | Self (archive footage) | 2022-10-18 |
Movie | Watchers 8: Cloak of Secrecy | 2014-06-15 | |
Movie | Watchers 7: Physical Evidence | Self | 2013-12-25 |
Movie | Watchers 6: The Secret Cosmic War | 2013-03-09 | |
Movie | Watchers 5: Let Me In | 2012-07-07 | |
Movie | Watchers 4: On the Edge | Himself | 2012-07-07 |
Movie | Watchers 3: Fingerprints of the Supernatural | Alien implants surgeon | 2011-10-17 |
Movie | Watchers 2: Signs in the Heavens and the Earth | Himself | 2011-05-24 |
Movie | Watchers 1: UFOs are Real, Burgeoning, and Not Going Away | Surgeon | 2010-11-12 |
Movie | The Scientific Study of Alien Implants - Part 1 | Self | 2004-10-05 |