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John Wisniski Jr.

Cast & creator

John Wisniski Jr.

1951-09-20 (age 75) Seattle, Washington, USAIMDb

Best known for Raw, All Elite Wrestling: Dynamite, WWF Superstars

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.

Also known as: Greg "The Hammer" Valentine, Greg Valentine, Baby Face Nelson, The Blue Knight, Boxcar Willie

Movies

104

film credits

Series

21

television credits

Career

125

1973–2025 · acting roles

Credit score

7.5

average across scored titles

Signature credits

Known for

Ordered by popularity

Raw

Raw

Greg "The Hammer" Valentine · 1993

All Elite Wrestling: Dynamite

All Elite Wrestling: Dynamite

Greg Valentine · 2019

WWF Superstars

WWF Superstars

Greg "The Hammer" Valentine · 1986

WWF Wrestling Challenge

WWF Wrestling Challenge

Greg Valentine · 1986

WWF Wrestling Challenge

WWF Wrestling Challenge

Greg "The Hammer" Valentine · 1986

Across film & television

Filmography (125)

Search filmography

Showing 125 of 125 credits

Raw

Raw

Greg "The Hammer" Valentine

All Elite Wrestling: Dynamite

All Elite Wrestling: Dynamite

Greg Valentine

WWF Superstars

WWF Superstars

Greg "The Hammer" Valentine

WWF Wrestling Challenge

WWF Wrestling Challenge

Greg Valentine

WWF Wrestling Challenge

WWF Wrestling Challenge

Greg "The Hammer" Valentine

WWE Saturday Night's Main Event

WWE Saturday Night's Main Event

Greg Valentine

WWE Saturday Night's Main Event

WWE Saturday Night's Main Event

WWE Saturday Night's Main Event

WWE Saturday Night's Main Event

Greg "The Hammer" Valentine

WWF All-Star Wrestling

WWF All-Star Wrestling

Greg Valentine

WWF All-Star Wrestling

WWF All-Star Wrestling

Greg 'The Hammer' Valentine

WWE Old School

WWE Old School

Greg Valentine

WWE Old School

WWE Old School

Greg "The Hammer" Valentine

Mid-Atlantic Championship Wrestling

Mid-Atlantic Championship Wrestling

Greg Valentine

Clash of the Champions

Clash of the Champions

Greg "The Hammer" Valentine

Biography: WWE Legends

Biography: WWE Legends

Greg "The Hammer" Valentine

Tuesday Night Titans

Tuesday Night Titans

Greg "The Hammer" Valentine

Tuesday Night Titans

Tuesday Night Titans

Greg Valentine

Undertaker: The Last Ride

Undertaker: The Last Ride

Greg Valentine (archive footage)

WWE's Most Wanted Treasures

WWE's Most Wanted Treasures

Greg "The Hammer" Valentine

WCW Arena Shows

WCW Arena Shows

Greg Valentine

WWE Survivor Series 1993

WWE Survivor Series 1993

The Blue Knight

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

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

Greg 'The Hammer' Valentine (archive footage)

The Greatest Wrestling Stars of the '80s

The Greatest Wrestling Stars of the '80s

Self

AWF Warriors of Wrestling

Greg "The Hammer" Valentine

WWE: The History Of The WWE Championship

WWE: The History Of The WWE Championship

WWE Survivor Series 1989

WWE Survivor Series 1989

Greg "The Hammer" Valentine

WWE WrestleMania III

WWE WrestleMania III

Greg "The Hammer" Valentine

WWE SuperTape: Volume 5

WWE SuperTape: Volume 5

Greg "The Hammer" Valentine

WWE Survivor Series 1990

WWE Survivor Series 1990

Greg "The Hammer" Valentine

WWE Royal Rumble 1992

WWE Royal Rumble 1992

Greg "The Hammer" Valentine

WWE: The History Of The Intercontinental Championship

WWE: The History Of The Intercontinental Championship

Himself

WWE Royal Rumble 1991

WWE Royal Rumble 1991

Greg "The Hammer" Valentine

WWE Survivor Series 1987

WWE Survivor Series 1987

Greg Valentine

Inside the Steel Cage

Inside the Steel Cage

Greg "The Hammer" Valentine

WWE Survivor Series 1988

WWE Survivor Series 1988

Greg "The Hammer" Valentine

WrestleMania II

WrestleMania II

Greg "The Hammer" Valentine

NWA The Final Conflict

NWA The Final Conflict

Greg Valentine

WWE SuperTape: Volume 2

WWE SuperTape: Volume 2

Greg "The Hammer" Valentine

WWE Royal Rumble 1994

WWE Royal Rumble 1994

Greg "The Hammer" Valentine

WWE Royal Rumble 1989

WWE Royal Rumble 1989

Greg "The Hammer" Valentine

WWE U.K. Rampage 1991

WWE U.K. Rampage 1991

Greg "The Hammer" Valentine

WCW World War 3 1997

WCW World War 3 1997

Greg "The Hammer" Valentine

WCW WrestleWar 1992

WCW WrestleWar 1992

Greg "The Hammer" Valentine

WWE SummerSlam 1989

WWE SummerSlam 1989

Greg Valentine

Demolition: Witness the Power

Demolition: Witness the Power

Greg "The Hammer" Valentine

The Best of the WWF: volume 20

The Best of the WWF: volume 20

Greg "The Hammer" Valentine

WWE Royal Rumble 1990

WWE Royal Rumble 1990

Greg "The Hammer" Valentine

WWE Superstars & Stripes Forever: The March to WrestleMania VII

WWE Superstars & Stripes Forever: The March to WrestleMania VII

Greg "The Hammer" Valentine

Headstrong

Headstrong

Self

WWE The Big Event

WWE The Big Event

Greg "The Hammer" Valentine

WrestleMania

WrestleMania

Greg "The Hammer" Valentine

WWE SummerSlam 1991

WWE SummerSlam 1991

Greg "The Hammer" Valentine

WWE The Brawl to End it All

WWE The Brawl to End it All

Greg "The Hammer" Valentine

WWE Los Angeles Wrestling: January '89

Greg "The Hammer" Valentine

Chris Jericho's 30th Anniversary Celebration

Chris Jericho's 30th Anniversary Celebration

Greg "The Hammer" Valentine

WWE Hall of Fame 2004

WWE Hall of Fame 2004

Self

The Best of the WWF: volume 10

The Best of the WWF: volume 10

Greg "The Hammer" Valentine

Wrestling's Most Embarrassing Moments

Wrestling's Most Embarrassing Moments

Greg "The Hammer" Valentine

WCW Clash of The Champions XX: 20th Anniversary

WCW Clash of The Champions XX: 20th Anniversary

Greg "The Hammer" Valentine

Most Unusual Matches

Most Unusual Matches

Greg "The Hammer" Valentine

Brutus "The Barber" Beefcake

Brutus "The Barber" Beefcake

Greg "The Hammer" Valentine

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

Himself

The Best of the WWF: volume 11

The Best of the WWF: volume 11

Greg "The Hammer" Valentine

NWA Starrcade 1983

NWA Starrcade 1983

Greg "The Hammer" Valentine

The Best of the WWF: volume 7

The Best of the WWF: volume 7

Greg "The Hammer" Valentine

Ricky "The Dragon" Steamboat

Ricky "The Dragon" Steamboat

Greg "The Hammer" Valentine

Macho Madness

Macho Madness

Greg "The Hammer" Valentine

WWE Hottest Matches

WWE Hottest Matches

Greg "The Hammer" Valentine

The Best of the WWF: volume 4

The Best of the WWF: volume 4

Greg "The Hammer" Valentine

WWE WrestleMania V

WWE WrestleMania V

Greg "The Hammer" Valentine

The WWF's Amazing Managers

The WWF's Amazing Managers

Greg 'The Hammer' Valentine

The Best of the WWF: volume 16 Around the World

The Best of the WWF: volume 16 Around the World

Greg "The Hammer" Valentine

WWE WrestleMania IV

WWE WrestleMania IV

Greg "The Hammer" Valentine

The Best of the WWF: volume 5

The Best of the WWF: volume 5

Greg "The Hammer" Valentine

WWE WrestleFest '91

WWE WrestleFest '91

Greg "The Hammer" Valentine

WWE The Ultimate Challenge Special: The March to WrestleMania VI

WWE The Ultimate Challenge Special: The March to WrestleMania VI

Greg "The Hammer" Valentine

WWF/AJPW/NJPW Wrestling Summit

WWF/AJPW/NJPW Wrestling Summit

At What Cost? Anatomy of Professional Wrestling

At What Cost? Anatomy of Professional Wrestling

Himself

WWE WrestleMania VII

WWE WrestleMania VII

Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: September '84

Greg "The Hammer" Valentine

Bob Uecker's Wacky World of Sports

Bob Uecker's Wacky World of Sports

Greg "The Hammer" Valentine

JCW Legends and Icons

WWE Funniest Moments

WWE Funniest Moments

Greg "The Hammer" Valentine

Battle of the WWE Superstars

Battle of the WWE Superstars

Greg Valentine

WCW Beach Blast

WCW Beach Blast

Greg "The Hammer" Valentine

WWE Rampage '91

WWE Rampage '91

Greg "The Hammer" Valentine

WWE Wrestling at The Meadowlands: September '88

Greg "The Hammer" Valentine

The Best of the WWF: volume 9

The Best of the WWF: volume 9

Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: July '88

Greg "The Hammer" Valentine

WWE Houston Wrestling: December '87

Greg "The Hammer" Valentine

WWE: Starrcade - The Essential Collection

WWE: Starrcade - The Essential Collection

Himself

The Best of the WWF: volume 14

The Best of the WWF: volume 14

Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: April '88

Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: April '89

Greg "The Hammer" Valentine

Hulkamania 1

Hulkamania 1

Greg Valentine

NWA Sam Muchnick Retirement Show

Greg Valentine

The Immortal Hulk Hogan

The Immortal Hulk Hogan

Greg Valentine

WWE Maple Leaf Wrestling: January '87

Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: December '85

Greg "The Hammer" Valentine

WWE Houston Wrestling: October '87

Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: October '85

Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: September '85

Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: October '84

Greg "The Hammer" Valentine

WWE Wrestling at The Meadowlands: January '87

Greg "The Hammer" Valentine

WWE Wrestling at The Meadowlands: May '89

Greg "The Hammer" Valentine

WWE U.K. Rampage 1988

Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: April '85

Greg "The Hammer" Valentine

WWE Houston Wrestling: October '86

Greg "The Hammer" Valentine

The Ultimate Warrior

The Ultimate Warrior

Greg "The Hammer" Valentine

Tag Team Champions

Tag Team Champions

Greg Valentine

NWA The Race to Starrcade

Greg Valentine

WWE Grudge Match

WWE Grudge Match

Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: June '87

Greg "The Hammer" Valentine

WWE Los Angeles Wrestling: December '88

Greg "The Hammer" Valentine

World Wrestling Legends: 6:05 - The Reunion

Greg Valentine

WWE Mega Matches

WWE Mega Matches

Greg "The Hammer" Valentine

Heroes of Wrestling

Heroes of Wrestling

Greg "The Hammer" Valentine

Midnight Massacre

Midnight Massacre

Caepio

350 Days

350 Days

Self

NWA Boogie Jam

NWA Boogie Jam

Greg Valentine

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

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

Himself

Behind the Ropes: The Greatest Fraternity in the World

Behind the Ropes: The Greatest Fraternity in the World

Himself

Fan Favorites

Fan Favorites

Greg Valentine

The British Bulldogs

The British Bulldogs

Greg Valentine

Wrestling Superheroes

Wrestling Superheroes

Greg "The Hammer" Valentine