Alex Trebek (born George Alexander Trebek on July 22, 1940, in Sudbury, Ontario, Canada) is the host of the current version of Jeopardy!, in syndication. On television he has either made guest appearances usually as himself or voiced himself (on The Simpsons episode “Miracle on Evergreen Terrace”) or characters modeled after himself, such as Alex Lebek in the Arthur episode "Arthur and the Big Riddle"; in the Rugrats episode "Game Show Didi", he was named Alan Quebec. He even appears as himself in the Nintendo Wii version of Jeopardy!, and Johnny Gilbert joins him, albeit by voice. Alex became a U.S. citizen in the late 1990s. He lives in California with his wife, Jean, and their two children, Emily and Matthew.

During the 80s and early 90s while hosting Jeopardy! he hosted Classic Concentration, the 80s version of Concentration.