William Arras Johnston (26 February 1922 – 25 May 2007) was an Australian cricketer who played in forty Test matches from 1947 to 1955. A left arm pace bowler, as well as a left arm orthodox spinner, Johnston was best known as a spearhead of Don Bradman's undefeated 1948 touring team, well known as "The Invincibles". Johnston headed the wicket-taking lists in both Test and first-class matches on the tour, and was the last Australian to take over 100 wickets on a tour of England. In recognition of his performances, he was named by Wisden as one of its Cricketers of the Year in 1949. The publication stated that "no Australian made a greater personal contribution to the playing success of the 1948 side". Regarded by Bradman as Australia's greatest-ever left-arm bowler, Johnston was noted for his endurance in bowling pace with the new ball and spin when the ball had worn. He became the fastest bowler to reach 100 Test wickets in 1951–52, at the time averaging less than nineteen with the ball. By the end of the season, he had played 24 Tests and contributed 111 wickets. Australia won nineteen and lost only two of these Tests. In 1953, a knee injury forced him to remodel his bowling action, and he became less effective before retiring after aggravating the injury in 1955. In retirement, he worked in sales and marketing, and later ran his own businesses. He had two sons, one of whom became a cricket administrator. Johnston died at the age of 85 on 25 May 2007.