Valerio Mancini

 was the winner of Big Brother 1 (US) as well as the first winner in Big Brother History. He received 59% of America's Vote after lasting 88 days inside the Big Brother House and won the $500,000 grand prize.

Valerio was a huge underdog during BB1. He made a close friend in Lillith Blount and was nominated 5 times as a lot of the other houseguests found him annoying. Despite this, the viewers fell in love with him and in the end, he won with 59% of the public vote.

Trivia

 * Valerio was the first winner in the American version of Big Brother.
 * Valerio is one of the first houseguests from New York, along with Lillith Blount.