J

Acting

John Wisniski Jr.

Born September 20, 1951Seattle, Washington, USA117 credits

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

Midnight Massacre

Midnight Massacre

Movie

2025

Biography: WWE Legends

Biography: WWE Legends

TV

2021

WWE's Most Wanted Treasures

WWE's Most Wanted Treasures

TV

2021

Chris Jericho's 30th Anniversary Celebration

Chris Jericho's 30th Anniversary Celebration

Movie

2020

Undertaker: The Last Ride

Undertaker: The Last Ride

TV

2020

All Elite Wrestling: Dynamite

All Elite Wrestling: Dynamite

TV

2019

Filmography

Midnight Massacre

2025Midnight Massacreas CaepioMovie

Biography: WWE Legends

2021Biography: WWE Legendsas Greg "The Hammer" ValentineTV

WWE's Most Wanted Treasures

2021WWE's Most Wanted Treasuresas Greg "The Hammer" ValentineTV

Chris Jericho's 30th Anniversary Celebration

2020Chris Jericho's 30th Anniversary Celebrationas Greg "The Hammer" ValentineMovie

Undertaker: The Last Ride

2020Undertaker: The Last Rideas Greg Valentine (archive footage)TV

All Elite Wrestling: Dynamite

2019All Elite Wrestling: Dynamiteas Greg ValentineTV

350 Days

2019350 Daysas SelfMovie

WWE: The U.S. Championship: A Legacy of Greatness

2016WWE: The U.S. Championship: A Legacy of Greatnessas Greg 'The Hammer' Valentine (archive footage)Movie

Behind the Ropes: The Greatest Fraternity in the World

2015Behind the Ropes: The Greatest Fraternity in the Worldas HimselfMovie

At What Cost? Anatomy of Professional Wrestling

2015At What Cost? Anatomy of Professional Wrestlingas HimselfMovie

2014WWE: 150 Best Pay-Per-View Matches, Vol 1as HimselfMovie

WWE: Starrcade - The Essential Collection

2012WWE: Starrcade - The Essential Collectionas HimselfMovie

2011JCW Legends and IconsMovie

Timeline: The History of WWE – 1985 – As Told By Greg Valentine

2011Timeline: The History of WWE – 1985 – As Told By Greg Valentineas HimselfMovie

WWE: The History Of The Intercontinental Championship

2008WWE: The History Of The Intercontinental Championshipas HimselfMovie

WWE: The History Of The WWE Championship

2006WWE: The History Of The WWE ChampionshipMovie

The Greatest Wrestling Stars of the '80s

2005The Greatest Wrestling Stars of the '80sas SelfMovie

2005World Wrestling Legends: 6:05 - The Reunionas Greg ValentineMovie

WWE Hall of Fame 2004

2004WWE Hall of Fame 2004as SelfMovie

Heroes of Wrestling

1999Heroes of Wrestlingas Greg "The Hammer" ValentineMovie

WCW World War 3 1997

1997WCW World War 3 1997as Greg "The Hammer" ValentineMovie

1995AWF Warriors of Wrestlingas Greg "The Hammer" ValentineTV

WWE Royal Rumble 1994

1994WWE Royal Rumble 1994as Greg "The Hammer" ValentineMovie

WWE Survivor Series 1993

1993WWE Survivor Series 1993as The Blue KnightMovie

Raw

1993Rawas Greg "The Hammer" ValentineTV

The Immortal Hulk Hogan

1992The Immortal Hulk Hoganas Greg ValentineMovie

WCW Clash of The Champions XX: 20th Anniversary

1992WCW Clash of The Champions XX: 20th Anniversaryas Greg "The Hammer" ValentineMovie

WCW Beach Blast

1992WCW Beach Blastas Greg "The Hammer" ValentineMovie

WCW WrestleWar 1992

1992WCW WrestleWar 1992as Greg "The Hammer" ValentineMovie

WWE SuperTape: Volume 5

1992WWE SuperTape: Volume 5as Greg "The Hammer" ValentineMovie

WWE Royal Rumble 1992

1992WWE Royal Rumble 1992as Greg "The Hammer" ValentineMovie

WWE Rampage '91

1991WWE Rampage '91as Greg "The Hammer" ValentineMovie

WWE SummerSlam 1991

1991WWE SummerSlam 1991as Greg "The Hammer" ValentineMovie

WWE WrestleFest '91

1991WWE WrestleFest '91as Greg "The Hammer" ValentineMovie

WWE U.K. Rampage 1991

1991WWE U.K. Rampage 1991as Greg "The Hammer" ValentineMovie

WWE Mega Matches

1991WWE Mega Matchesas Greg "The Hammer" ValentineMovie

WWE WrestleMania VII

1991WWE WrestleMania VIIas Greg "The Hammer" ValentineMovie

WWE Superstars & Stripes Forever: The March to WrestleMania VII

1991WWE Superstars & Stripes Forever: The March to WrestleMania VIIas Greg "The Hammer" ValentineMovie

WWE Funniest Moments

1991WWE Funniest Momentsas Greg "The Hammer" ValentineMovie

WWE Royal Rumble 1991

1991WWE Royal Rumble 1991as Greg "The Hammer" ValentineMovie

WWE Survivor Series 1990

1990WWE Survivor Series 1990as Greg "The Hammer" ValentineMovie

WWE Hottest Matches

1990WWE Hottest Matchesas Greg "The Hammer" ValentineMovie

Battle of the WWE Superstars

1990Battle of the WWE Superstarsas Greg ValentineMovie

WWE SuperTape: Volume 2

1990WWE SuperTape: Volume 2as Greg "The Hammer" ValentineMovie

WWF/AJPW/NJPW Wrestling Summit

1990WWF/AJPW/NJPW Wrestling SummitMovie

WWE The Ultimate Challenge Special: The March to WrestleMania VI

1990WWE The Ultimate Challenge Special: The March to WrestleMania VIas Greg "The Hammer" ValentineMovie

Wrestling Superheroes

1990Wrestling Superheroesas Greg "The Hammer" ValentineMovie

WWE Royal Rumble 1990

1990WWE Royal Rumble 1990as Greg "The Hammer" ValentineMovie

WWE Survivor Series 1989

1989WWE Survivor Series 1989as Greg "The Hammer" ValentineMovie

WWE SummerSlam 1989

1989WWE SummerSlam 1989as Greg ValentineMovie

Demolition: Witness the Power

1989Demolition: Witness the Poweras Greg "The Hammer" ValentineMovie

Fan Favorites

1989Fan Favoritesas Greg ValentineMovie

The Best of the WWF: volume 20

1989The Best of the WWF: volume 20as Greg "The Hammer" ValentineMovie

The Ultimate Warrior

1989The Ultimate Warrioras Greg "The Hammer" ValentineMovie

1989WWE Wrestling at The Meadowlands: May '89as Greg "The Hammer" ValentineMovie

1989WWE Maple Leaf Wrestling: April '89as Greg "The Hammer" ValentineMovie

WWE WrestleMania V

1989WWE WrestleMania Vas Greg "The Hammer" ValentineMovie

1989WWE Los Angeles Wrestling: January '89as Greg "The Hammer" ValentineMovie

WWE Royal Rumble 1989

1989WWE Royal Rumble 1989as Greg "The Hammer" ValentineMovie

1988WWE Los Angeles Wrestling: December '88as Greg "The Hammer" ValentineMovie

WWE Survivor Series 1988

1988WWE Survivor Series 1988as Greg "The Hammer" ValentineMovie

Macho Madness

1988Macho Madnessas Greg "The Hammer" ValentineMovie

1988WWE U.K. Rampage 1988as Greg "The Hammer" ValentineMovie

1988WWE Wrestling at The Meadowlands: September '88as Greg "The Hammer" ValentineMovie

The Best of the WWF: volume 16 Around the World

1988The Best of the WWF: volume 16 Around the Worldas Greg "The Hammer" ValentineMovie

1988WWE Maple Leaf Wrestling: July '88as Greg "The Hammer" ValentineMovie

1988WWE Maple Leaf Wrestling: April '88as Greg "The Hammer" ValentineMovie

WWE WrestleMania IV

1988WWE WrestleMania IVas Greg "The Hammer" ValentineMovie

Clash of the Champions

1988Clash of the Championsas Greg "The Hammer" ValentineTV

Brutus "The Barber" Beefcake

1988Brutus "The Barber" Beefcakeas Greg "The Hammer" ValentineMovie

The Best of the WWF: volume 14

1987The Best of the WWF: volume 14as Greg "The Hammer" ValentineMovie

Wrestling's Most Embarrassing Moments

1987Wrestling's Most Embarrassing Momentsas Greg "The Hammer" ValentineMovie

1987WWE Houston Wrestling: December '87as Greg "The Hammer" ValentineMovie

WWE Survivor Series 1987

1987WWE Survivor Series 1987as Greg ValentineMovie

1987WWE Houston Wrestling: October '87as Greg "The Hammer" ValentineMovie

1987WWE Maple Leaf Wrestling: June '87as Greg "The Hammer" ValentineMovie

The Best of the WWF: volume 11

1987The Best of the WWF: volume 11as Greg "The Hammer" ValentineMovie

WWE WrestleMania III

1987WWE WrestleMania IIIas Greg "The Hammer" ValentineMovie

The Best of the WWF: volume 10

1987The Best of the WWF: volume 10as Greg "The Hammer" ValentineMovie

1987WWE Maple Leaf Wrestling: January '87as Greg "The Hammer" ValentineMovie

1987WWE Wrestling at The Meadowlands: January '87as Greg "The Hammer" ValentineMovie

Bob Uecker's Wacky World of Sports

1987Bob Uecker's Wacky World of Sportsas Greg "The Hammer" ValentineMovie

Inside the Steel Cage

1986Inside the Steel Cageas Greg "The Hammer" ValentineMovie

1986WWE Houston Wrestling: October '86as Greg "The Hammer" ValentineMovie

The British Bulldogs

1986The British Bulldogsas Greg ValentineMovie

The Best of the WWF: volume 9

1986The Best of the WWF: volume 9as Greg "The Hammer" ValentineMovie

WWF Wrestling Challenge

1986WWF Wrestling Challengeas Greg ValentineTV

WWE The Big Event

1986WWE The Big Eventas Greg "The Hammer" ValentineMovie

The Best of the WWF: volume 7

1986The Best of the WWF: volume 7as Greg "The Hammer" ValentineMovie

Ricky "The Dragon" Steamboat

1986Ricky "The Dragon" Steamboatas Greg "The Hammer" ValentineMovie

WrestleMania II

1986WrestleMania IIas Greg "The Hammer" ValentineMovie

WWE Grudge Match

1986WWE Grudge Matchas Greg "The Hammer" ValentineMovie

Tag Team Champions

1986Tag Team Championsas Greg ValentineMovie

The Best of the WWF: volume 5

1986The Best of the WWF: volume 5as Greg "The Hammer" ValentineMovie

The WWF's Amazing Managers

1985The WWF's Amazing Managersas Greg 'The Hammer' ValentineMovie

1985WWE Maple Leaf Wrestling: October '85as Greg "The Hammer" ValentineMovie

1985WWE Maple Leaf Wrestling: September '85as Greg "The Hammer" ValentineMovie

The Best of the WWF: volume 4

1985The Best of the WWF: volume 4as Greg "The Hammer" ValentineMovie

Saturday Night's Main Event

1985Saturday Night's Main Eventas Greg ValentineTV

1985WWE Maple Leaf Wrestling: April '85as Greg "The Hammer" ValentineMovie

WrestleMania

1985WrestleManiaas Greg "The Hammer" ValentineMovie

Most Unusual Matches

1985Most Unusual Matchesas Greg "The Hammer" ValentineMovie

WWF Hulkamania 1

1985WWF Hulkamania 1as Greg ValentineMovie

1984WWE Maple Leaf Wrestling: October '84as Greg "The Hammer" ValentineMovie

1984WWE Maple Leaf Wrestling: September '84as Greg "The Hammer" ValentineMovie

WWE The Brawl to End it All

1984WWE The Brawl to End it Allas Greg "The Hammer" ValentineMovie

Tuesday Night Titans

1984Tuesday Night Titansas Greg "The Hammer" ValentineTV

NWA Boogie Jam

1984NWA Boogie Jamas Greg ValentineMovie

NWA Starrcade 1983

1983NWA Starrcade 1983as Greg "The Hammer" ValentineMovie

WCW Arena Shows

1983WCW Arena Showsas Greg ValentineTV

1983NWA The Race to Starrcadeas Greg ValentineMovie

NWA The Final Conflict

1983NWA The Final Conflictas Greg ValentineMovie

1982NWA Sam Muchnick Retirement Showas Greg ValentineMovie

Mid-Atlantic Championship Wrestling

1981Mid-Atlantic Championship Wrestlingas Greg ValentineTV

WWF All-Star Wrestling

1975WWF All-Star Wrestlingas Greg ValentineTV

WWE Old School

1973WWE Old Schoolas Greg ValentineTV

—WWE Maple Leaf Wrestling: December '85as Greg "The Hammer" ValentineMovie