William Lawrence Francis "Bill" Cullen (February 18, 1920 – July 7, 1990) was an American radio and television personality whose career spanned five decades. He was best known for hosting 23 different game shows, more than any other emcee, earning him the nickname "Dean of Game Show Hosts". He also became a regular panelist on I've Got a Secret and To Tell the Truth, and a guest panelist on many other shows.