William Earl Casper Jr. (June 24, 1931 – February 7, 2015) was an American professional golfer. He was one of the most prolific tournament winners on the PGA Tour from the mid-1950s to the mid-1970s.
In his youth, Casper started as a caddie and emerged from the junior golf hotbed of San Diego, where golf could be played year-round, to rank seventh all-time in career Tour wins with 51, across 20 years between 1956 and 1975. Fellow San Diegan great Gene Littler was a friend and rival from teenager to senior. Casper won three major championships, represented the United States on a then-record eight Ryder Cup teams, and holds the U.S. record for career Ryder Cup points won. After reaching age 50, Casper regularly played the Senior PGA Tour and was a winner there until 1989.