JJ
John Wisniski Jr.
ActorBorn September 20, 1951 (73 years)
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
| 2021 | The Best of WWE: Best of Survivor Series · as Greg Valentine |
| 2021 | Biography: WWE Legends (TV Series) · as Greg "the Hammer" Valentine |
| 2021 | WWE's Most Wanted Treasures (TV Series) · as Greg "the Hammer" Valentine |
| 2020 | The Best of WWE: Best of Survivor Series · as Greg Valentine |
| 2020 | Undertaker: The Last Ride (TV Series) · as Greg Valentine (archive Footage) |
| 2020 | Ric Flair's Best WWE Matches · as Greg 'the Hammer' Valentine |
| 2019 | All Elite Wrestling: Dynamite (TV Series) · as Greg Valentine |
| 2019 | Dark Side of the Ring (TV Series) · as Greg 'the Hammer' Valentine - Professional Wrestler |
| 2016 | United States Championsip-A Legacy of Greatness · as Greg 'the Hammer' Valentine (archive Footage) |
| 2014 | The Monday Night War (TV Series) · as Greg 'the Hammer' Valentine |
| 2013 | The History of WWE: 50 Years of Sports Entertainment · as Greg 'the Hammer' Valentine |
| 2013 | Insane Clown Posse Theater (TV Series) · as Greg 'the Hammer' Valentine |
| 2012 | The Top 100 Moments in Raw History · as Greg 'the Hammer' Valentine |
| 2011 | The True Story of WrestleMania · as Greg 'the Hammer' Valentine |
| 2010 | Hart and Soul: The Hart Family Anthology · as The Blue Knight |
| 2009 | WWE: The Rise and Fall of WCW · as Greg 'the Hammer' Valentine |
| 2009 | The WWE: The Best of Saturday Night's Main Event · as Greg 'the Hammer' Valentine |
| 2008 | Nature Boy Ric Flair: The Definitive Collection · as Greg 'the Hammer' Valentine |
| 2007 | The Most Powerful Families in Wrestling · as Greg 'the Hammer' Valentine |
| 2006 | |
| 2006 | Born to Controversy: The Roddy Piper Story · as Greg 'the Hammer' Valentine |
| 2005 | Hogan Knows Best (TV Series) · as Greg 'the Hammer' Valentine |
| 2005 | WWE Legends: Greatest Wrestling Stars of the '80s · as Greg 'the Hammer' Valentine |
| 2004 | |
| 2004 | WrestleMania XX · as Greg 'the Hammer' Valentine |
| 2004 | WWE: The History of WrestleMania I-IX · as Greg The Hammer Valentine |
| 2003 | The Ultimate Ric Flair Collection · as Greg 'the Hammer' Valentine |
| 1998 | WWE Heat (TV Series) · as Greg 'the Hammer' Valentine |
| 1997 | WCW World War 3 · as Greg "the Hammer" Valentine |
| 1995 | WCW Monday Nitro (TV Series) · as Greg 'the Hammer' Valentine |
| 1994 | Royal Rumble · as Greg "the Hammer" Valentine |
| 1993 | Survivor Series · as The Blue Knight |
| 1993 | WWE Raw (TV Series) · as Greg "the Hammer" Valentine |
| 1992 | WCW Beach Blast · as Greg "the Hammer" Valentine |
| 1992 | WCW Wrestle War · as Greg "the Hammer" Valentine |
| 1992 | Royal Rumble · as Greg "the Hammer" Valentine |
| 1991 | Rampage 91 · as Greg "the Hammer" Valentine |
| 1991 | Summerslam · as Greg "the Hammer" Valentine |
| 1991 | WWF: Wrestlefest '91 · as Greg "the Hammer" Valentine |
| 1991 | WWF UK Rampage '91 · as Greg "the Hammer" Valentine |
| 1991 | WrestleMania VII · as Greg "the Hammer" Valentine |
| 1991 | Royal Rumble · as Greg "the Hammer" Valentine |
| 1990 | Survivor Series · as Greg "the Hammer" Valentine |
| 1990 | WWF Hottest Matches · as Greg "the Hammer" Valentine |
| 1990 | WrestleMania VI · as Greg 'the Hammer' Valentine |
| 1990 | Wrestling Superheroes · as Greg 'the Hammer' Valentine |
| 1990 | Royal Rumble · as Greg "the Hammer" Valentine |
| 1989 | Survivor Series · as Greg "the Hammer" Valentine |
| 1989 | Summerslam · as Greg Valentine |
| 1989 | WWF: Demolition - Witness the Power · as Greg "the Hammer" Valentine |
| 1989 | Fan Favorites · as Greg Valentine |
| 1989 | The Ultimate Warrior · as Greg "the Hammer" Valentine |
| 1989 | WrestleMania V · as Greg "the Hammer" Valentine |
| 1989 | Royal Rumble · as Greg "the Hammer" Valentine |
| 1988 | Survivor Series · as Greg "the Hammer" Valentine |
| 1988 | Macho Madness · as Greg 'the Hammer' Valentine |
| 1988 | Brutus the Barber Beefcake · as Greg 'the Hammer' Valentine |
| 1988 | WrestleMania IV · as Greg "the Hammer" Valentine |
| 1987 | Wrestling's Most Embarrassing Moments · as Greg 'the Hammer' Valentine |
| 1987 | Survivor Series · as Greg Valentine |
| 1987 | WrestleMania III · as Greg "the Hammer" Valentine |
| 1986 | WWF's Inside the Steel Cage · as Greg 'the Hammer' Valentine |
| 1986 | The British Bulldogs · as Greg Valentine |
| 1986 | WWF Wrestling Challenge (TV Series) · as Greg Valentine |
| 1986 | WWF Superstars (TV Series) · as Greg 'the Hammer' Valentine |
| 1986 | WWF: The Big Event · as Greg "the Hammer" Valentine |
| 1986 | Ricky the Dragon Steamboat · as Greg "the Hammer" Valentine |
| 1986 | WrestleMania 2 · as Greg "the Hammer" Valentine |
| 1986 | WrestleMania 2 · as Greg 'the Hammer' Valentine |
| 1985 | WWF Saturday Night's Main Event (TV Series) · as Greg Valentine |
| 1985 | WCW Saturday Night (TV Series) · as Greg 'the Hammer' Valentine |
| 1985 | WrestleMania I · as Greg "the Hammer" Valentine |
| 1985 | WWF Prime Time Wrestling (TV Series) · as Greg 'the Hammer' Valentine |
| 1985 | Pro Wrestling Illustrated presents Lords of the Ring: Superstars & Superbouts · as Greg 'the Hammer' Valentine |
| 1985 | The WWF's Most Unusual Matches · as Greg 'the Hammer' Valentine |
| 1983 | Starrcade · as Greg "the Hammer" Valentine |
| 1975 | WWF All-Star Wrestling (TV Series) · as Greg 'the Hammer' Valentine |
| 1973 | WWF on MSG Network (TV Series) · as Greg Valentine |
| 1972 | WWF All-Star Wrestling (TV Series) · as Greg 'the Hammer' Valentine |
| 1972 | WWF Championship Wrestling (TV Series) · as Greg 'the Hammer' Valentine |