Oliver Killeen

Oliver Killeen (born 13 June 1937 in Ireland) is an international bigamist and fraudster.

He pretended to be a doctor of psychology in Waterford, Ireland for five years in the late 1990s conning thousands of people into believing he was a highly trained psychotherapist. He also wrote articles for Irish newspapers during that time. He had married numerous times but never divorced. Eventually Killeen was convicted for bigamy in the United Kingdom in 2004, serving a 1 1/2 years of a 3-year sentence.
Barbara Daniels, one of Killeen's many wives, filed a bigamy charge against him in Superior Court in Ontario. On March 1, 2012, Oliver Killeen pleaded guilty to the charge, and was sentenced to 90-days in jail (to be served on weekends). The prosecutor said Killeen’s age, his guilty plea and fact he is working were mitigating factors to be considered in sentencing.
In 2006 Agnieszka Piotrowska directed a documentary about Oliver Killeen for Channel Five titled Conman With 14 Wives (also broadcast as Trust Me I am a Conman in some territories) which led to a discovery of Killeen's subsequent bigamous marriage. In 2010, alongside the release of a companion book to the series, a Canadian documentary titled "The Devil You Know" was produced by the Vancouver-based Make Believe Media. One episode details Barbara Daniel's account of her marriage to Oliver Killeen and her daughter's subsequent efforts to bring him to justice in Canada. The series is being broadcast in Canada on the Viva channel and on the Oprah Winfrey Network (OWN).