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© 2026 Virelixia. All rights reserved.

Movie & TV data provided by TMDB. Not affiliated with TMDB or any streaming service.

No photo

Known For: Acting
Born: September 20, 1951
Place of Birth: Seattle, Washington, USA

John Wisniski Jr.

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

Midnight Massacre

2025 · Caepio

Biography: WWE Legends

2021 · Greg "The Hammer" Valentine

WWE's Most Wanted Treasures

2021 · Greg "The Hammer" Valentine

Chris Jericho's 30th Anniversary Celebration

2020 · Greg "The Hammer" Valentine

Undertaker: The Last Ride

2020 · Greg Valentine (archive footage)

All Elite Wrestling: Dynamite

2019 · Greg Valentine

350 Days

2019 · Self

Headstrong

2019 · Self

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

2016 · Greg 'The Hammer' Valentine (archive footage)

Behind the Ropes: The Greatest Fraternity in the World

2015 · Himself

At What Cost? Anatomy of Professional Wrestling

2015 · Himself

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

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

2014 · Himself

WWE: Starrcade - The Essential Collection

2012 · Himself

JCW Legends and Icons

JCW Legends and Icons

2011

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

2011 · Himself

WWE: The History Of The Intercontinental Championship

2008 · Himself

WWE: The History Of The WWE Championship

2006

The Greatest Wrestling Stars of the '80s

2005 · Self

World Wrestling Legends: 6:05 - The Reunion

World Wrestling Legends: 6:05 - The Reunion

2005 · Greg Valentine

WWE Hall of Fame 2004

2004 · Self

Heroes of Wrestling

1999 · Greg "The Hammer" Valentine

WCW World War 3 1997

1997 · Greg "The Hammer" Valentine

AWF Warriors of Wrestling

AWF Warriors of Wrestling

1995 · Greg "The Hammer" Valentine

WWE Royal Rumble 1994

1994 · Greg "The Hammer" Valentine

WWE Survivor Series 1993

1993 · The Blue Knight

Raw

1993 · Greg "The Hammer" Valentine

The Immortal Hulk Hogan

1992 · Greg Valentine

WCW Clash of The Champions XX: 20th Anniversary

1992 · Greg "The Hammer" Valentine

WCW Beach Blast

1992 · Greg "The Hammer" Valentine

WCW WrestleWar 1992

1992 · Greg "The Hammer" Valentine

WWE SuperTape: Volume 5

1992 · Greg "The Hammer" Valentine

WWE Royal Rumble 1992

1992 · Greg "The Hammer" Valentine

WWE Rampage '91

1991 · Greg "The Hammer" Valentine

WWE SummerSlam 1991

1991 · Greg "The Hammer" Valentine

WWE WrestleFest '91

1991 · Greg "The Hammer" Valentine

WWE U.K. Rampage 1991

1991 · Greg "The Hammer" Valentine

WWE Mega Matches

1991 · Greg "The Hammer" Valentine

WWE WrestleMania VII

1991 · Greg "The Hammer" Valentine

WWE Superstars & Stripes Forever: The March to WrestleMania VII

1991 · Greg "The Hammer" Valentine

WWE Funniest Moments

1991 · Greg "The Hammer" Valentine

WWE Royal Rumble 1991

1991 · Greg "The Hammer" Valentine

WWE Survivor Series 1990

1990 · Greg "The Hammer" Valentine

WWE Hottest Matches

1990 · Greg "The Hammer" Valentine

Battle of the WWE Superstars

1990 · Greg Valentine

WWE SuperTape: Volume 2

1990 · Greg "The Hammer" Valentine

WWF/AJPW/NJPW Wrestling Summit

1990

WWE The Ultimate Challenge Special: The March to WrestleMania VI

1990 · Greg "The Hammer" Valentine

Wrestling Superheroes

1990 · Greg "The Hammer" Valentine

WWE Royal Rumble 1990

1990 · Greg "The Hammer" Valentine

WWE Survivor Series 1989

1989 · Greg "The Hammer" Valentine

WWE SummerSlam 1989

1989 · Greg Valentine

Demolition: Witness the Power

1989 · Greg "The Hammer" Valentine

Fan Favorites

1989 · Greg Valentine

The Best of the WWF: volume 20

1989 · Greg "The Hammer" Valentine

The Ultimate Warrior

1989 · Greg "The Hammer" Valentine

WWE Wrestling at The Meadowlands: May '89

WWE Wrestling at The Meadowlands: May '89

1989 · Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: April '89

WWE Maple Leaf Wrestling: April '89

1989 · Greg "The Hammer" Valentine

WWE WrestleMania V

1989 · Greg "The Hammer" Valentine

WWE Los Angeles Wrestling: January '89

WWE Los Angeles Wrestling: January '89

1989 · Greg "The Hammer" Valentine

WWE Royal Rumble 1989

1989 · Greg "The Hammer" Valentine

WWE Los Angeles Wrestling: December '88

WWE Los Angeles Wrestling: December '88

1988 · Greg "The Hammer" Valentine

WWE Survivor Series 1988

1988 · Greg "The Hammer" Valentine

Macho Madness

1988 · Greg "The Hammer" Valentine

WWE U.K. Rampage 1988

WWE U.K. Rampage 1988

1988 · Greg "The Hammer" Valentine

WWE Wrestling at The Meadowlands: September '88

WWE Wrestling at The Meadowlands: September '88

1988 · Greg "The Hammer" Valentine

The Best of the WWF: volume 16 Around the World

1988 · Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: July '88

WWE Maple Leaf Wrestling: July '88

1988 · Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: April '88

WWE Maple Leaf Wrestling: April '88

1988 · Greg "The Hammer" Valentine

WWE WrestleMania IV

1988 · Greg "The Hammer" Valentine

Clash of the Champions

1988 · Greg "The Hammer" Valentine

Brutus "The Barber" Beefcake

1988 · Greg "The Hammer" Valentine

The Best of the WWF: volume 14

1987 · Greg "The Hammer" Valentine

Wrestling's Most Embarrassing Moments

1987 · Greg "The Hammer" Valentine

WWE Houston Wrestling: December '87

WWE Houston Wrestling: December '87

1987 · Greg "The Hammer" Valentine

WWE Survivor Series 1987

1987 · Greg Valentine

WWE Houston Wrestling: October '87

WWE Houston Wrestling: October '87

1987 · Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: June '87

WWE Maple Leaf Wrestling: June '87

1987 · Greg "The Hammer" Valentine

The Best of the WWF: volume 11

1987 · Greg "The Hammer" Valentine

WWE WrestleMania III

1987 · Greg "The Hammer" Valentine

The Best of the WWF: volume 10

1987 · Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: January '87

WWE Maple Leaf Wrestling: January '87

1987 · Greg "The Hammer" Valentine

WWE Wrestling at The Meadowlands: January '87

WWE Wrestling at The Meadowlands: January '87

1987 · Greg "The Hammer" Valentine

Bob Uecker's Wacky World of Sports

1987 · Greg "The Hammer" Valentine

Inside the Steel Cage

1986 · Greg "The Hammer" Valentine

WWE Houston Wrestling: October '86

WWE Houston Wrestling: October '86

1986 · Greg "The Hammer" Valentine

The British Bulldogs

1986 · Greg Valentine

The Best of the WWF: volume 9

1986 · Greg "The Hammer" Valentine

WWF Wrestling Challenge

1986 · Greg Valentine, Greg "The Hammer" Valentine

WWF Superstars

1986 · Greg "The Hammer" Valentine

WWE The Big Event

1986 · Greg "The Hammer" Valentine

The Best of the WWF: volume 7

1986 · Greg "The Hammer" Valentine

Ricky "The Dragon" Steamboat

1986 · Greg "The Hammer" Valentine

WrestleMania II

1986 · Greg "The Hammer" Valentine

WWE Grudge Match

1986 · Greg "The Hammer" Valentine

Tag Team Champions

1986 · Greg Valentine

The Best of the WWF: volume 5

1986 · Greg "The Hammer" Valentine

The WWF's Amazing Managers

1985 · Greg 'The Hammer' Valentine

WWE Maple Leaf Wrestling: December '85

WWE Maple Leaf Wrestling: December '85

1985 · Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: October '85

WWE Maple Leaf Wrestling: October '85

1985 · Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: September '85

WWE Maple Leaf Wrestling: September '85

1985 · Greg "The Hammer" Valentine

The Best of the WWF: volume 4

1985 · Greg "The Hammer" Valentine

WWE Saturday Night's Main Event

1985 · Greg Valentine, Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: April '85

WWE Maple Leaf Wrestling: April '85

1985 · Greg "The Hammer" Valentine

WrestleMania

1985 · Greg "The Hammer" Valentine

WWE Pay Per View

1985

Most Unusual Matches

1985 · Greg "The Hammer" Valentine

WWF Hulkamania 1

1985 · Greg Valentine

WWE Maple Leaf Wrestling: October '84

WWE Maple Leaf Wrestling: October '84

1984 · Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: September '84

WWE Maple Leaf Wrestling: September '84

1984 · Greg "The Hammer" Valentine

WWE The Brawl to End it All

1984 · Greg "The Hammer" Valentine

Tuesday Night Titans

1984 · Greg "The Hammer" Valentine, Greg Valentine

NWA Boogie Jam

1984 · Greg Valentine

NWA Starrcade 1983

1983 · Greg "The Hammer" Valentine

WCW Arena Shows

1983 · Greg Valentine

NWA The Race to Starrcade

NWA The Race to Starrcade

1983 · Greg Valentine

NWA The Final Conflict

1983 · Greg Valentine

NWA Sam Muchnick Retirement Show

NWA Sam Muchnick Retirement Show

1982 · Greg Valentine

Mid-Atlantic Championship Wrestling

1981 · Greg Valentine

WWF All-Star Wrestling

1975 · Greg Valentine, Greg 'The Hammer' Valentine

WWE Old School

1973 · Greg Valentine, Greg "The Hammer" Valentine

John Wisniski Jr. · Virelixia