Johannes Franciscus Catharinus "Hans" Klok (born 22 February 1969) is a Dutch magician, illusionist and actor. Hans Klok was born in Purmerend, Netherlands. On his tenth birthday, he received a magic set as a present and began performing for friends at their birthday parties. He started his professional career in magic as a teenager. At the age of fourteen, he became youth champion of the Netherlands and Europe in conjuring, and won the Wenegini Prize. In 1990, Hans and his assistant Sittah won the Grand Prix of the Netherlands and the Henk Vermeijden Cup with "the fastest metamorphosis in the world". By age 23, he was part of a touring show with Dutch comedian André van Duin. In 1994, he performed for the first time on the Las Vegas Strip, as part of NBC’s The World's Greatest Magic, broadcast live from Caesars Palace to an audience of 60 million people. Hans used the period after that to prepare his first theatre show.