George Alexander "Alex" Trebek (; born July 22, 1940) is a Canadian American television personality. He has been the host of the syndicated game show Jeopardy! since 1984, and has also hosted a number of other game shows, including The Wizard of Odds, Double Dare, High Rollers, Battlestars, Classic Concentration and To Tell the Truth. Trebek has made appearances in numerous television series, usually portraying himself. A native of Canada, he became a naturalized United States citizen in 1998.