Wladek (Walter) "Killer" Kowalski (October 13, 1926–August 30, 2008) was a Canadian professional wrestler. Kowalski wrestled
for numerous promotions during his career, including the NWA and WWF, and was a known heel wrestler. He held numerous championships
including the WWF World Tag Team Championship with Big John Studd. After retiring in 1977, Kowalski started a professional
wrestling school in Malden, Massachusetts and trained many professional wrestlers, including Triple H.