Shirley Crabtree Jr., better known as Big Daddy, was an English professional wrestler. He worked for Joint Promotions and the original British Wrestling Federation. Initially appearing on television as a heel, he teamed with Giant Haystacks. After splitting with Haystacks, he became a fan favourite and the top star of Joint Promotions from the late 1970s to the early 1990s.

The history of professional wrestling in the United Kingdom spans over one hundred years beginning in the 1920s, when it was popularised under the concept of "All in Wrestling", which emphasised an "anything goes" style and presentation. Following World War II, the style and presentation of professional wrestling in the UK underwent a dramatic shift, as the Admiral-Lord Mountevans rules were introduced to make British professional wrestling appear much closer to a legitimate sport. Professional wrestling entered the mainstream British culture when the newly-formed independent television network ITV began broadcasting it in 1955, firstly on Saturday afternoons and then also in a late-night midweek slot. Domestically produced professional wrestling was at its peak of popularity when the television show World of Sport was launched in the mid-1960s, making household names out of Adrian Street, Mick McManus, Giant Haystacks, Jackie Pallo, Big Daddy, Mark Rocco, Steve Veidor, Dynamite Kid, and Kendo Nagasaki.