John Wisniski Jr.
Acting
Biography
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 120
Movies (104)
Midnight Massacre2025Caepio
Chris Jericho's 30th Anniversary Celebration2020Greg "The Hammer" Valentine
350 Days2019Self
Headstrong2019Self
WWE: The U.S. Championship: A Legacy of Greatness2016Greg 'The Hammer' Valentine (archive footage)
Behind the Ropes: The Greatest Fraternity in the World2015Himself
At What Cost? Anatomy of Professional Wrestling2015Himself- WWE: 150 Best Pay-Per-View Matches, Vol 12014Himself
WWE: Starrcade - The Essential Collection2012Himself- JCW Legends and Icons2011
Timeline The History of WWE – 1985 – As Told By Greg Valentine2011Himself
WWE: The History Of The Intercontinental Championship2008Himself
WWE: The History Of The WWE Championship2006
The Greatest Wrestling Stars of the '80s2005Self- World Wrestling Legends: 6:05 - The Reunion2005Greg Valentine
WWE Hall of Fame 20042004Self
Heroes of Wrestling1999Greg "The Hammer" Valentine
WCW World War 3 19971997Greg "The Hammer" Valentine
WWE Royal Rumble 19941994Greg "The Hammer" Valentine
WWE Survivor Series 19931993The Blue Knight
The Immortal Hulk Hogan1992Greg Valentine
WCW Clash of The Champions XX: 20th Anniversary1992Greg "The Hammer" Valentine
WCW Beach Blast1992Greg "The Hammer" Valentine
WCW WrestleWar 19921992Greg "The Hammer" Valentine
WWE SuperTape: Volume 51992Greg "The Hammer" Valentine
WWE Royal Rumble 19921992Greg "The Hammer" Valentine
WWE Rampage '911991Greg "The Hammer" Valentine
WWE SummerSlam 19911991Greg "The Hammer" Valentine
WWE WrestleFest '911991Greg "The Hammer" Valentine
WWE U.K. Rampage 19911991Greg "The Hammer" Valentine
Shows (16)
WWE's Most Wanted Treasures2021Greg "The Hammer" Valentine
Biography: WWE Legends2021Greg "The Hammer" Valentine
Undertaker: The Last Ride2020Greg Valentine (archive footage)
All Elite Wrestling: Dynamite2019Greg Valentine- AWF Warriors of Wrestling1995Greg "The Hammer" Valentine
Raw1993Greg "The Hammer" Valentine
Clash of the Champions1988Greg "The Hammer" Valentine
WWF Wrestling Challenge1986Greg Valentine
WWF Superstars1986Greg "The Hammer" Valentine
WWE Saturday Night's Main Event1985Greg Valentine
WWE Pay Per View1985
Tuesday Night Titans1984Greg "The Hammer" Valentine
WCW Arena Shows1983Greg Valentine
Mid-Atlantic Championship Wrestling1981Greg Valentine
WWF All-Star Wrestling1975Greg Valentine
WWE Old School1973Greg Valentine