John Wisniski Jr.
Actor
Born Sep 20, 1951 · Seattle, Washington, USA
Active 1973–present · 6′0″ (183 cm) · Awards: WWE Hall of Fame
John Wisniski, Jr. is an American professional wrestler, better known as Greg "The Hammer" Valentine. He is the son of wrestler Johnny Valentine.
Filmography
Midnight Massacre (2025) — CaepioAll Elite Wrestling: Dynamite (2019) — Greg ValentineWWE Saturday Night's Main Event (1985) — Greg "The Hammer" Valentine · Greg ValentineWWE WrestleMania III (1987) — Greg "The Hammer" ValentineWrestleMania (1985) — Greg "The Hammer" ValentineWWE Survivor Series 1987 (1987) — Greg ValentineWWE WrestleMania V (1989) — Greg "The Hammer" ValentineWWE WrestleMania IV (1988) — Greg "The Hammer" ValentineWWE WrestleMania VII (1991) — Greg "The Hammer" ValentineWWE Survivor Series 1988 (1988) — Greg "The Hammer" ValentineWrestling's Most Embarrassing Moments (1987) — Greg "The Hammer" ValentineBiography: WWE Legends (2021) — Greg "The Hammer" ValentineRicky "The Dragon" Steamboat (1986) — Greg "The Hammer" ValentineWWE: The History Of The WWE Championship (2006)WWE The Brawl to End it All (1984) — Greg "The Hammer" ValentineWWE Survivor Series 1990 (1990) — Greg "The Hammer" ValentineWrestleMania II (1986) — Greg "The Hammer" ValentineWWE Survivor Series 1989 (1989) — Greg "The Hammer" ValentineWWE SummerSlam 1991 (1991) — Greg "The Hammer" ValentineWWE Royal Rumble 1994 (1994) — Greg "The Hammer" ValentineWWE Royal Rumble 1992 (1992) — Greg "The Hammer" ValentineWWE Royal Rumble 1991 (1991) — Greg "The Hammer" ValentineMost Unusual Matches (1985) — Greg "The Hammer" ValentineWWE The Big Event (1986) — Greg "The Hammer" Valentine