Roger Leir

Roger Krevin Leir (March 20, 1935 – March 14, 2014) 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".

Career Leir was born in the San Francisco Bay area in 1935. He moved to southern California at age 13. He described his childhood imagination as “wild and vivid”, often fantasizing that he was able to fly. He attended the University of Southern California and graduated with a bachelor's degree in Science in 1961. In 1964, he qualified as a podiatrist, and later became involved with the local chapter of the Mutual UFO Network (MUFON).