Acting

John Wisniski Jr.

Born: 1951-09-20
Birthplace: Seattle, Washington, USA

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

Filmography

119 titles · Newest first · Cast and crew credits

Midnight Massacre

2025 · Movie

Caepio

Biography: WWE Legends

2021 · TV Show

Greg "The Hammer" Valentine

WWE's Most Wanted Treasures

2021 · TV Show

Greg "The Hammer" Valentine

Chris Jericho's 30th Anniversary Celebration

2020 · Movie

Greg "The Hammer" Valentine

Undertaker: The Last Ride

2020 · TV Show

Greg Valentine (archive footage)

350 Days

2019 · Movie

Self

All Elite Wrestling: Dynamite

2019 · TV Show

Greg Valentine

Headstrong

2019 · Movie

Self

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

2016 · Movie

Greg 'The Hammer' Valentine (archive footage)

At What Cost? Anatomy of Professional Wrestling

2015 · Movie

Himself

Behind the Ropes: The Greatest Fraternity in the World

2015 · Movie

Himself

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

2014 · Movie

Himself

WWE: Starrcade - The Essential Collection

2012 · Movie

Himself

JCW Legends and Icons

2011 · Movie

Cast

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

2011 · Movie

Himself

WWE: The History Of The Intercontinental Championship

2008 · Movie

Himself

WWE: The History Of The WWE Championship

2006 · Movie

Cast

The Greatest Wrestling Stars of the '80s

2005 · Movie

Self

World Wrestling Legends: 6:05 - The Reunion

2005 · Movie

Greg Valentine

WWE Hall of Fame 2004

2004 · Movie

Self

Heroes of Wrestling

1999 · Movie

Greg "The Hammer" Valentine

WCW World War 3 1997

1997 · Movie

Greg "The Hammer" Valentine

AWF Warriors of Wrestling

1995 · TV Show

Greg "The Hammer" Valentine

WWE Royal Rumble 1994

1994 · Movie

Greg "The Hammer" Valentine

Raw

1993 · TV Show

Greg "The Hammer" Valentine

WWE Survivor Series 1993

1993 · Movie

The Blue Knight

The Immortal Hulk Hogan

1992 · Movie

Greg Valentine

WCW Beach Blast

1992 · Movie

Greg "The Hammer" Valentine

WCW Clash of The Champions XX: 20th Anniversary

1992 · Movie

Greg "The Hammer" Valentine

WCW WrestleWar 1992

1992 · Movie

Greg "The Hammer" Valentine

WWE Royal Rumble 1992

1992 · Movie

Greg "The Hammer" Valentine

WWE SuperTape: Volume 5

1992 · Movie

Greg "The Hammer" Valentine

WWE Funniest Moments

1991 · Movie

Greg "The Hammer" Valentine

WWE Mega Matches

1991 · Movie

Greg "The Hammer" Valentine

WWE Rampage '91

1991 · Movie

Greg "The Hammer" Valentine

WWE Royal Rumble 1991

1991 · Movie

Greg "The Hammer" Valentine

WWE SummerSlam 1991

1991 · Movie

Greg "The Hammer" Valentine

WWE Superstars & Stripes Forever: The March to WrestleMania VII

1991 · Movie

Greg "The Hammer" Valentine

WWE U.K. Rampage 1991

1991 · Movie

Greg "The Hammer" Valentine

WWE WrestleFest '91

1991 · Movie

Greg "The Hammer" Valentine

WWE WrestleMania VII

1991 · Movie

Greg "The Hammer" Valentine

Battle of the WWE Superstars

1990 · Movie

Greg Valentine

Wrestling Superheroes

1990 · Movie

Greg "The Hammer" Valentine

WWE Hottest Matches

1990 · Movie

Greg "The Hammer" Valentine

WWE Royal Rumble 1990

1990 · Movie

Greg "The Hammer" Valentine

WWE SuperTape: Volume 2

1990 · Movie

Greg "The Hammer" Valentine

WWE Survivor Series 1990

1990 · Movie

Greg "The Hammer" Valentine

WWE The Ultimate Challenge Special: The March to WrestleMania VI

1990 · Movie

Greg "The Hammer" Valentine

WWF/AJPW/NJPW Wrestling Summit

1990 · Movie

Cast

Demolition: Witness the Power

1989 · Movie

Greg "The Hammer" Valentine

Fan Favorites

1989 · Movie

Greg Valentine

The Best of the WWF: volume 20

1989 · Movie

Greg "The Hammer" Valentine

The Ultimate Warrior

1989 · Movie

Greg "The Hammer" Valentine

WWE Los Angeles Wrestling: January '89

1989 · Movie

Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: April '89

1989 · Movie

Greg "The Hammer" Valentine

WWE Royal Rumble 1989

1989 · Movie

Greg "The Hammer" Valentine

WWE SummerSlam 1989

1989 · Movie

Greg Valentine

WWE Survivor Series 1989

1989 · Movie

Greg "The Hammer" Valentine

WWE WrestleMania V

1989 · Movie

Greg "The Hammer" Valentine

WWE Wrestling at The Meadowlands: May '89

1989 · Movie

Greg "The Hammer" Valentine

Brutus "The Barber" Beefcake

1988 · Movie

Greg "The Hammer" Valentine

Clash of the Champions

1988 · TV Show

Greg "The Hammer" Valentine

Macho Madness

1988 · Movie

Greg "The Hammer" Valentine

The Best of the WWF: volume 16 Around the World

1988 · Movie

Greg "The Hammer" Valentine

WWE Los Angeles Wrestling: December '88

1988 · Movie

Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: April '88

1988 · Movie

Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: July '88

1988 · Movie

Greg "The Hammer" Valentine

WWE Survivor Series 1988

1988 · Movie

Greg "The Hammer" Valentine

WWE U.K. Rampage 1988

1988 · Movie

Greg "The Hammer" Valentine

WWE WrestleMania IV

1988 · Movie

Greg "The Hammer" Valentine

WWE Wrestling at The Meadowlands: September '88

1988 · Movie

Greg "The Hammer" Valentine

Bob Uecker's Wacky World of Sports

1987 · Movie

Greg "The Hammer" Valentine

The Best of the WWF: volume 10

1987 · Movie

Greg "The Hammer" Valentine

The Best of the WWF: volume 11

1987 · Movie

Greg "The Hammer" Valentine

The Best of the WWF: volume 14

1987 · Movie

Greg "The Hammer" Valentine

Wrestling's Most Embarrassing Moments

1987 · Movie

Greg "The Hammer" Valentine

WWE Houston Wrestling: December '87

1987 · Movie

Greg "The Hammer" Valentine

WWE Houston Wrestling: October '87

1987 · Movie

Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: January '87

1987 · Movie

Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: June '87

1987 · Movie

Greg "The Hammer" Valentine

WWE Survivor Series 1987

1987 · Movie

Greg Valentine

WWE WrestleMania III

1987 · Movie

Greg "The Hammer" Valentine

WWE Wrestling at The Meadowlands: January '87

1987 · Movie

Greg "The Hammer" Valentine

Inside the Steel Cage

1986 · Movie

Greg "The Hammer" Valentine

Ricky "The Dragon" Steamboat

1986 · Movie

Greg "The Hammer" Valentine

Tag Team Champions

1986 · Movie

Greg Valentine

The Best of the WWF: volume 5

1986 · Movie

Greg "The Hammer" Valentine

The Best of the WWF: volume 7

1986 · Movie

Greg "The Hammer" Valentine

The Best of the WWF: volume 9

1986 · Movie

Greg "The Hammer" Valentine

The British Bulldogs

1986 · Movie

Greg Valentine

WrestleMania II

1986 · Movie

Greg "The Hammer" Valentine

WWE Grudge Match

1986 · Movie

Greg "The Hammer" Valentine

WWE Houston Wrestling: October '86

1986 · Movie

Greg "The Hammer" Valentine

WWE The Big Event

1986 · Movie

Greg "The Hammer" Valentine

WWF Superstars

1986 · TV Show

Greg "The Hammer" Valentine

WWF Wrestling Challenge

1986 · TV Show

Greg Valentine · Greg "The Hammer" Valentine

Hulkamania 1

1985 · Movie

Greg Valentine

Most Unusual Matches

1985 · Movie

Greg "The Hammer" Valentine

The Best of the WWF: volume 4

1985 · Movie

Greg "The Hammer" Valentine

The WWF's Amazing Managers

1985 · Movie

Greg 'The Hammer' Valentine

WrestleMania

1985 · Movie

Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: April '85

1985 · Movie

Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: December '85

1985 · Movie

Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: October '85

1985 · Movie

Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: September '85

1985 · Movie

Greg "The Hammer" Valentine

WWE Saturday Night's Main Event

1985 · TV Show

Greg Valentine · Cast · Greg "The Hammer" Valentine

NWA Boogie Jam

1984 · Movie

Greg Valentine

Tuesday Night Titans

1984 · TV Show

Greg "The Hammer" Valentine · Greg Valentine

WWE Maple Leaf Wrestling: October '84

1984 · Movie

Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: September '84

1984 · Movie

Greg "The Hammer" Valentine

WWE The Brawl to End it All

1984 · Movie

Greg "The Hammer" Valentine

NWA Starrcade 1983

1983 · Movie

Greg "The Hammer" Valentine

NWA The Final Conflict

1983 · Movie

Greg Valentine

NWA The Race to Starrcade

1983 · Movie

Greg Valentine

WCW Arena Shows

1983 · TV Show

Greg Valentine

NWA Sam Muchnick Retirement Show

1982 · Movie

Greg Valentine

Mid-Atlantic Championship Wrestling

1981 · TV Show

Greg Valentine

WWF All-Star Wrestling

1975 · TV Show

Greg Valentine · Greg 'The Hammer' Valentine

WWE Old School

1973 · TV Show

Greg Valentine · Greg "The Hammer" Valentine