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".

• 

  Watchers 5: Let Me In

  2012

• Enquête sur les OVNIs

  Self

• 

  The Day Before Disclosure

  Himself

• 

  Watchers 7: Physical Evidence

  Self

• 

  Moment of Contact

  Self (archive footage)

• 

  Watchers 4: On the Edge

  Himself

• 

  Watchers 6: The Secret Cosmic War

  2013

• 

  Watchers 8: Cloak of Secrecy

  2014

• 

  Ancient Astronauts: The Gods from Planet X

  Self - Host

• 

  Watchers 3: Fingerprints of the Supernatural

  Alien implants surgeon

• 2022Moment of ContactSelf (archive footage)
• 2014Watchers 8: Cloak of Secrecy
• 2013Watchers 7: Physical EvidenceSelf
• 2013Watchers 6: The Secret Cosmic War
• 2012Watchers 4: On the EdgeHimself
• 2012Watchers 5: Let Me In
• 2011Watchers 3: Fingerprints of the SupernaturalAlien implants surgeon
• 2011Watchers 2: Signs in the Heavens and the EarthHimself
• 2011Ancient Astronauts: The Gods from Planet XSelf - Host
• 2010The Day Before DisclosureHimself
• 2010Watchers 1: UFOs are Real, Burgeoning, and Not Going AwaySurgeon
• 2004The Scientific Study of Alien Implants - Part 1Self
• 2004Enquête sur les OVNIsSelf
• —The Scientific Study of Alien Implants - Part 2Self