(December 21, 1921 – June 7, 1982), known as 'The Great Impostor', masqueraded as many people – from monks to surgeons to prison wardens.
He was the subject of a movie, The Great Impostor, in which he was played by Tony Curtis.
As quoted by Time Magazine, "Ferdinand Demara, or 'the Great Imposter' as he came to be known, has a very impressive resume — the only thing it lacks is his real name."Demara's impersonations included a naval surgeon, a civil engineer, a sheriff's deputy, an assistant prison warden, a doctor of applied psychology, a hospital orderly, a lawyer, a child-care expert, a Benedictine monk, a Trappist monk, an editor, a cancer researcher, and a teacher.
One teaching job led to six months in prison.There are not many facts that have been proven about Demara, only speculation, as there are only a few articles and movies about him that were created during his lifetime.
Demara was said to possess a true photographic memory and was widely reputed to have an extraordinary IQ.
He was apparently able to memorize necessary techniques from textbooks and worked on two cardinal rules: The burden of proof is on the accuser and When in danger, attack.
He described his own motivation as "Rascality, pure rascality".