John Wisniski Jr.
Known for
Acting
Life
Born 1951 (age 74)
Born in
Seattle, Washington, USA
Credits
View on IMDb109 acting credits
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.
Known For
Raw
11 Jan 1993
Undertaker: The Last Ride
10 May 2020
All Elite Wrestling: Dynamite
02 Oct 2019
WrestleMania
31 Mar 1985
WWE WrestleMania III
29 Mar 1987
WWE Saturday Night's Main Event
11 May 1985
WrestleMania II
07 Apr 1986
WWE WrestleMania V
02 Apr 1989
Filmography
2025
- Midnight Massacreas Caepio
2021
- Biography: WWE Legendsas Greg "The Hammer" Valentine1 episode
- WWE's Most Wanted Treasuresas Greg "The Hammer" Valentine2 episodes
2020
- Chris Jericho's 30th Anniversary Celebrationas Greg "The Hammer" Valentine
- Undertaker: The Last Rideas Greg Valentine (archive footage)1 episode
2019
- All Elite Wrestling: Dynamiteas Greg Valentine1 episode
2016
- WWE: The U.S. Championship: A Legacy of Greatnessas Greg 'The Hammer' Valentine (archive footage)
2005
- World Wrestling Legends: 6:05 - The Reunionas Greg Valentine
1999
- Heroes of Wrestlingas Greg "The Hammer" Valentine
1997
- WCW World War 3 1997as Greg "The Hammer" Valentine
1995
- AWF Warriors of Wrestlingas Greg "The Hammer" Valentine3 episodes
1994
- WWE Royal Rumble 1994as Greg "The Hammer" Valentine
1993
- WWE Survivor Series 1993as The Blue Knight
- Rawas Greg "The Hammer" Valentine1 episode
1992
- The Immortal Hulk Hoganas Greg Valentine
- WCW Clash of The Champions XX: 20th Anniversaryas Greg "The Hammer" Valentine
- WCW Beach Blastas Greg "The Hammer" Valentine
- WCW WrestleWar 1992as Greg "The Hammer" Valentine
- WWE SuperTape: Volume 5as Greg "The Hammer" Valentine
- WWE Royal Rumble 1992as Greg "The Hammer" Valentine
1991
- WWE Rampage '91as Greg "The Hammer" Valentine
- WWE SummerSlam 1991as Greg "The Hammer" Valentine
- WWE WrestleFest '91as Greg "The Hammer" Valentine
- WWE U.K. Rampage 1991as Greg "The Hammer" Valentine
- WWE Mega Matchesas Greg "The Hammer" Valentine
- WWE WrestleMania VIIas Greg "The Hammer" Valentine
- WWE Superstars & Stripes Forever: The March to WrestleMania VIIas Greg "The Hammer" Valentine
- WWE Funniest Momentsas Greg "The Hammer" Valentine
- WWE Royal Rumble 1991as Greg "The Hammer" Valentine
1990
- WWE Survivor Series 1990as Greg "The Hammer" Valentine
- WWE Hottest Matchesas Greg "The Hammer" Valentine
- Battle of the WWE Superstarsas Greg Valentine
- WWE SuperTape: Volume 2as Greg "The Hammer" Valentine
- WWF/AJPW/NJPW Wrestling Summit
- WWE The Ultimate Challenge Special: The March to WrestleMania VIas Greg "The Hammer" Valentine
- Wrestling Superheroesas Greg "The Hammer" Valentine
- WWE Royal Rumble 1990as Greg "The Hammer" Valentine
1989
- WWE Survivor Series 1989as Greg "The Hammer" Valentine
- WWE SummerSlam 1989as Greg Valentine
- Demolition: Witness the Poweras Greg "The Hammer" Valentine
- Fan Favoritesas Greg Valentine
- The Best of the WWF: volume 20as Greg "The Hammer" Valentine
- The Ultimate Warrioras Greg "The Hammer" Valentine
- WWE Wrestling at The Meadowlands: May '89as Greg "The Hammer" Valentine
- WWE Maple Leaf Wrestling: April '89as Greg "The Hammer" Valentine
- WWE WrestleMania Vas Greg "The Hammer" Valentine
- WWE Los Angeles Wrestling: January '89as Greg "The Hammer" Valentine
- WWE Royal Rumble 1989as Greg "The Hammer" Valentine
1988
- WWE Los Angeles Wrestling: December '88as Greg "The Hammer" Valentine
- WWE Survivor Series 1988as Greg "The Hammer" Valentine
- Macho Madnessas Greg "The Hammer" Valentine
- WWE U.K. Rampage 1988as Greg "The Hammer" Valentine
- WWE Wrestling at The Meadowlands: September '88as Greg "The Hammer" Valentine
- The Best of the WWF: volume 16 Around the Worldas Greg "The Hammer" Valentine
- WWE Maple Leaf Wrestling: July '88as Greg "The Hammer" Valentine
- WWE Maple Leaf Wrestling: April '88as Greg "The Hammer" Valentine
- WWE WrestleMania IVas Greg "The Hammer" Valentine
- Clash of the Championsas Greg "The Hammer" Valentine1 episode
- Brutus "The Barber" Beefcakeas Greg "The Hammer" Valentine
1987
- The Best of the WWF: volume 14as Greg "The Hammer" Valentine
- Wrestling's Most Embarrassing Momentsas Greg "The Hammer" Valentine
- WWE Houston Wrestling: December '87as Greg "The Hammer" Valentine
- WWE Survivor Series 1987as Greg Valentine
- WWE Houston Wrestling: October '87as Greg "The Hammer" Valentine
- WWE Maple Leaf Wrestling: June '87as Greg "The Hammer" Valentine
- The Best of the WWF: volume 11as Greg "The Hammer" Valentine
- WWE WrestleMania IIIas Greg "The Hammer" Valentine
- The Best of the WWF: volume 10as Greg "The Hammer" Valentine
- WWE Maple Leaf Wrestling: January '87as Greg "The Hammer" Valentine
- WWE Wrestling at The Meadowlands: January '87as Greg "The Hammer" Valentine
- Bob Uecker's Wacky World of Sportsas Greg "The Hammer" Valentine
1986
- Inside the Steel Cageas Greg "The Hammer" Valentine
- WWE Houston Wrestling: October '86as Greg "The Hammer" Valentine
- The British Bulldogsas Greg Valentine
- The Best of the WWF: volume 9as Greg "The Hammer" Valentine
- WWF Wrestling Challengeas Greg "The Hammer" Valentine8 episodes
- WWF Superstarsas Greg "The Hammer" Valentine44 episodes
- WWE The Big Eventas Greg "The Hammer" Valentine
- The Best of the WWF: volume 7as Greg "The Hammer" Valentine
- Ricky "The Dragon" Steamboatas Greg "The Hammer" Valentine
- WrestleMania IIas Greg "The Hammer" Valentine
- WWE Grudge Matchas Greg "The Hammer" Valentine
- Tag Team Championsas Greg Valentine
- The Best of the WWF: volume 5as Greg "The Hammer" Valentine
1985
- The WWF's Amazing Managersas Greg 'The Hammer' Valentine
- WWE Maple Leaf Wrestling: December '85as Greg "The Hammer" Valentine
- WWE Maple Leaf Wrestling: October '85as Greg "The Hammer" Valentine
- WWE Maple Leaf Wrestling: September '85as Greg "The Hammer" Valentine
- The Best of the WWF: volume 4as Greg "The Hammer" Valentine
- WWE Saturday Night's Main Eventas Greg "The Hammer" Valentine4 episodes
- WWE Maple Leaf Wrestling: April '85as Greg "The Hammer" Valentine
- WrestleManiaas Greg "The Hammer" Valentine
- Most Unusual Matchesas Greg "The Hammer" Valentine
- WWF Hulkamania 1as Greg Valentine
1984
- WWE Maple Leaf Wrestling: October '84as Greg "The Hammer" Valentine
- WWE Maple Leaf Wrestling: September '84as Greg "The Hammer" Valentine
- WWE The Brawl to End it Allas Greg "The Hammer" Valentine
- Tuesday Night Titansas Greg Valentine5 episodes
- NWA Boogie Jamas Greg Valentine
1983
- NWA Starrcade 1983as Greg "The Hammer" Valentine
- WCW Arena Showsas Greg Valentine1 episode
- NWA The Race to Starrcadeas Greg Valentine
- NWA The Final Conflictas Greg Valentine
1982
- NWA Sam Muchnick Retirement Showas Greg Valentine
1981
- Mid-Atlantic Championship Wrestlingas Greg Valentine24 episodes
1975
- WWF All-Star Wrestlingas Greg 'The Hammer' Valentine8 episodes
1973
- WWE Old Schoolas Greg "The Hammer" Valentine17 episodes