In January 1983, Sharpe entered the World Wrestling Federation and would become a regular of its programming throughout the mid-1980s and early 1990s. He was announced and self-proclaimed as "Canada's Greatest Athlete" and was further distinguished by his near-constant yelling and grunting throughout a match, as well as a mysterious black brace on his right forearm, supposedly protecting an injury but more widely believed to contain a foreign object. Initially in his WWF career he was managed by Captain Lou Albano and received a sizeable push, regularly defeating jobbers after smashing them with said forearm. This culminated on April 30, 1983 with a match against world heavyweight champion Bob Backlund at the Philadelphia Spectrum, but Sharpe was defeated and would never reach such main event heights again. In fact, Sharpe would never hold a single title for the promotion, and would become largely relegated to the mid-card of house shows and being regularly used as a jobber himself to rising stars of the then-WWF in television tapings.
Despite the derision, Sharpe had a few more memorable moments over his WWF career. He appeared on Piper's Pit in 1984, provided the opposition in Ivan Putski's 1987 comeback match at Madison Square Garden, and pinned Boris Zhukov to reach the second round of the 1988 King Of The Ring tournament. In what may be his last televised match, Sharpe was defeated by the short-lived Man Mountain Rock on May 15, 1995.
Sharpe passed away on January 17, 2016.