John Wisniski Jr. Movies, TV Series
4 titles
Acting
Sep 20, 1951
Seattle, Washington, USA
John Wisniski Jr., widely recognized in the wrestling world as Greg "The Hammer" Valentine, is an esteemed American professional wrestler. Born into a wrestling family, he is the son of legendary grappler Johnny Valentine. Over his extensive career, which has lasted more than 40 years, Valentine has...