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John Wisniski Jr.

Personal Information

Known ForActing
GenderMale
Birth DateSep 20, 1951 (75 years old)
Zodiac Sign♍Virgo
Place of BirthSeattle, Washington, USA
Career Span1973 – Present (54 yrs)
Known Credits93 Titles
Official Links
IMDbWWikidata
ActingPopularity Score 0.9

John Wisniski Jr.

Also known as:Greg "The Hammer" ValentineGreg ValentineBaby Face NelsonThe Blue Knight+3 more
Total Works

93

79 movies • 14 shows

Avg Rating

7.3 / 10

across rated releases

Box Office

—

worldwide gross

Global Reach

#1

TMDB star index

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.

Signature Roles & Milestones

Raw
6.8
Raw
1993•series
as Greg "The Hammer" Valentine
Undertaker: The Last Ride
7.4
as Greg Valentine (archive footage)
All Elite Wrestling: Dynamite
7.9
as Greg Valentine
WrestleMania
6.6
WrestleMania
1985•movie
as Greg "The Hammer" Valentine

Photos & Headshots1

Full Filmography & Credits

Showing 93 titles featuring John Wisniski Jr.

Raw
6.8
1 eps
Raw
1993•series

as Greg "The Hammer" Valentine

Undertaker: The Last Ride
7.4
1 eps

as Greg Valentine (archive footage)

All Elite Wrestling: Dynamite
7.9
1 eps

as Greg Valentine

WrestleMania
6.6
WrestleMania
1985•movie

as Greg "The Hammer" Valentine

WWE WrestleMania III
7.4

as Greg "The Hammer" Valentine

WWE Saturday Night's Main Event
8.3
1 eps

as Greg Valentine

WrestleMania II
6.4
WrestleMania II
1986•movie

as Greg "The Hammer" Valentine

WWE WrestleMania V
7.3
WWE WrestleMania V
1989•movie

as Greg "The Hammer" Valentine

WWE WrestleMania IV
7.2

as Greg "The Hammer" Valentine

WWE WrestleMania VII
7.3

as Greg "The Hammer" Valentine

Biography: WWE Legends
7.4
1 eps

as Greg "The Hammer" Valentine

WWE Survivor Series 1987
8.4

as Greg Valentine

WWE Royal Rumble 1992
6.9

as Greg "The Hammer" Valentine

WWE Royal Rumble 1994
6.9

as Greg "The Hammer" Valentine

WWE Survivor Series 1990
7.7

as Greg "The Hammer" Valentine

WWE Survivor Series 1988
8.0

as Greg "The Hammer" Valentine

WWE Royal Rumble 1991
7.1

as Greg "The Hammer" Valentine

350 Days
5.1
350 Days
2019•movie

as Self

WWE Royal Rumble 1989
5.8

as Greg "The Hammer" Valentine

WWE Survivor Series 1989
7.8

as Greg "The Hammer" Valentine

WWE Royal Rumble 1990
6.1

as Greg "The Hammer" Valentine

WWE SummerSlam 1991
7.7

as Greg "The Hammer" Valentine

WWE SummerSlam 1989
6.7

as Greg Valentine

WWE's Most Wanted Treasures
8.6
2 eps

as Greg "The Hammer" Valentine

WWF Superstars
7.2
71 eps
WWF Superstars
1986•series

as Greg "The Hammer" Valentine

WWE: The History Of The Intercontinental Championship
7.3

as Himself

WWE Survivor Series 1993
6.2

as The Blue Knight

NWA Starrcade 1983
7.3
NWA Starrcade 1983
1983•movie

as Greg "The Hammer" Valentine

WWE: The U.S. Championship: A Legacy of Greatness
9.2

as Greg 'The Hammer' Valentine (archive footage)

WWE Hall of Fame 2004
8.2

as Self

WWE The Big Event
8.0
WWE The Big Event
1986•movie

as Greg "The Hammer" Valentine

The Greatest Wrestling Stars of the '80s
7.8

as Self

WWF Wrestling Challenge
6.8
66 eps

as Greg Valentine

Chris Jericho's 30th Anniversary Celebration
7.7

as Greg "The Hammer" Valentine

WCW World War 3 1997
7.5

as Greg "The Hammer" Valentine

Wrestling's Most Embarrassing Moments
10.0

as Greg "The Hammer" Valentine

Tuesday Night Titans
9.0
3 eps

as Greg "The Hammer" Valentine

The British Bulldogs
4.0

as Greg Valentine

Ricky "The Dragon" Steamboat
10.0

as Greg "The Hammer" Valentine

WCW Beach Blast
8.0
WCW Beach Blast
1992•movie

as Greg "The Hammer" Valentine

At What Cost? Anatomy of Professional Wrestling
10.0

as Himself

Most Unusual Matches
9.0

as Greg "The Hammer" Valentine

WWE: The History Of The WWE Championship
10.0
Heroes of Wrestling
1.0

as Greg "The Hammer" Valentine

WWE The Brawl to End it All
10.0

as Greg "The Hammer" Valentine

WWE U.K. Rampage 1991
6.0

as Greg "The Hammer" Valentine

WCW WrestleWar 1992
6.0

as Greg "The Hammer" Valentine

Headstrong
6.0
Headstrong
2019•movie

as Self

Battle of the WWE Superstars

as Greg Valentine

WWE WrestleFest '91

as Greg "The Hammer" Valentine

WWE Hottest Matches

as Greg "The Hammer" Valentine

WWE SuperTape: Volume 2

as Greg "The Hammer" Valentine

WWE SuperTape: Volume 5

as Greg "The Hammer" Valentine

Demolition: Witness the Power

as Greg "The Hammer" Valentine

WWE Mega Matches
WWE Mega Matches
1991•movie

as Greg "The Hammer" Valentine

WWE Rampage '91
WWE Rampage '91
1991•movie

as Greg "The Hammer" Valentine

The Ultimate Warrior

as Greg "The Hammer" Valentine

Midnight Massacre
Midnight Massacre
2025•movie

as Caepio

Bob Uecker's Wacky World of Sports

as Greg "The Hammer" Valentine

Behind the Ropes: The Greatest Fraternity in the World

as Himself

Fan Favorites
Fan Favorites
1989•movie

as Greg Valentine

The Best of the WWF: volume 4

as Greg "The Hammer" Valentine

The Best of the WWF: volume 5

as Greg "The Hammer" Valentine

The Best of the WWF: volume 7

as Greg "The Hammer" Valentine

The Best of the WWF: volume 9

as Greg "The Hammer" Valentine

The Best of the WWF: volume 10

as Greg "The Hammer" Valentine

The Best of the WWF: volume 11

as Greg "The Hammer" Valentine

The Best of the WWF: volume 14

as Greg "The Hammer" Valentine

The Best of the WWF: volume 16 Around the World

as Greg "The Hammer" Valentine

The Best of the WWF: volume 20

as Greg "The Hammer" Valentine

Hulkamania 1
Hulkamania 1
1985•movie

as Greg Valentine

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

as Himself

WWF/AJPW/NJPW Wrestling Summit
WWE: Starrcade - The Essential Collection

as Himself

NWA The Final Conflict

as Greg Valentine

Tag Team Champions
Tag Team Champions
1986•movie

as Greg Valentine

WCW Clash of The Champions XX: 20th Anniversary

as Greg "The Hammer" Valentine

NWA Boogie Jam
NWA Boogie Jam
1984•movie

as Greg Valentine

WWE The Ultimate Challenge Special: The March to WrestleMania VI

as Greg "The Hammer" Valentine

WWE Superstars & Stripes Forever: The March to WrestleMania VII

as Greg "The Hammer" Valentine

The Immortal Hulk Hogan

as Greg Valentine

The WWF's Amazing Managers

as Greg 'The Hammer' Valentine

Macho Madness
Macho Madness
1988•movie

as Greg "The Hammer" Valentine

Brutus "The Barber" Beefcake

as Greg "The Hammer" Valentine

Inside the Steel Cage

as Greg "The Hammer" Valentine

Wrestling Superheroes

as Greg "The Hammer" Valentine

WWE Funniest Moments

as Greg "The Hammer" Valentine

WWE Grudge Match
WWE Grudge Match
1986•movie

as Greg "The Hammer" Valentine

WWF All-Star Wrestling
6 eps

as Greg Valentine

WWE Old School
7 eps
WWE Old School
1973•series

as Greg Valentine

Mid-Atlantic Championship Wrestling
24 eps

as Greg Valentine

WCW Arena Shows
1 eps
WCW Arena Shows
1983•series

as Greg Valentine

Clash of the Champions
1 eps

as Greg "The Hammer" Valentine