John Wisniski Jr.
Known for Acting
John Wisniski, Jr. is an American professional wrestler, better known as Greg "The Hammer" Valentine. He is the son of wrestler Johnny Valentine. In the course of his career, which has spanned over four decades, Valentine has held more than 40 championships, including the NWA United States Heavyweight Championship and the WWE Intercontinental Championship. An alumnus of WWE and World Championship Wrestling, he was inducted to the WWE Hall of Fame in 2004.
Filmography
WrestleMania
1985
as Greg "The Hammer" Valentine
WWE WrestleMania III
1987
as Greg "The Hammer" Valentine
WrestleMania II
1986
as Greg "The Hammer" Valentine
WWE WrestleMania VII
1991
as Greg "The Hammer" Valentine
WWE Royal Rumble 1992
1992
as Greg "The Hammer" Valentine
Midnight Massacre
2025
as Caepio
WWE Rampage '91
1991
as Greg "The Hammer" Valentine
WWE WrestleMania IV
1988
as Greg "The Hammer" Valentine
WWE: 150 Best Pay-Per-View Matches, Vol 1
2014
as Himself
WWE WrestleMania V
1989
as Greg "The Hammer" Valentine
WWE Royal Rumble 1994
1994
as Greg "The Hammer" Valentine
WWE: The U.S. Championship: A Legacy of Greatness
2016
as Greg 'The Hammer' Valentine (archive footage)
WWE Survivor Series 1988
1988
as Greg "The Hammer" Valentine
WWE Royal Rumble 1989
1989
as Greg "The Hammer" Valentine
WWE Survivor Series 1987
1987
as Greg Valentine
WWE Survivor Series 1989
1989
as Greg "The Hammer" Valentine
The Greatest Wrestling Stars of the '80s
2005
as Self
WWE: Starrcade - The Essential Collection
2012
as Himself
WWE WrestleFest '91
1991
as Greg "The Hammer" Valentine
WWE Royal Rumble 1990
1990
as Greg "The Hammer" Valentine