Who was the Japanese fighter with the vampire teeth?

That's Lung Fei (listed as Fei Lung on imdb) who was in a megaton of these films, usually playing the villain. He's great--the Japanese chief is my favorite of his roles. He also plays Win-Without-A-Knife in "Master of the Flying Guillotine". Here's a list of his films (possibly not all of them either) taken from the Hong Kong Movie Database:

7 Grandmasters, The (1978)
72 Desperate Rebels (1978)
Adventure for Imperial Treasure (1981)
Adventure, The (1972)
Ammunition Hunters, The (1971)
Angry Hero, The (1973)
Assault of Final Rival (1978)
Avenging Boxer (1979)
Battle of Guningtou, The (1979)
Beach of the War Gods (1973)
Big Boss (1981)
Black Panther (1973)
Blind Swordman's Revenge, The (1974)
Blood Brothers (1982)
Born Invincible (1978)
Brave and the Evil (1971)
Brother Two (1974)
Bruce Lee Against Supermen (1975)
Bruce Takes Dragon Town (1974)
Buddha Assassinator, The (1980)
Cantonese (1978)
Cavalier, The (1978)
Champion, The (1973)
Chivalrous Inn (1977)
Chow Ken (1972)
City On Fire (1993)
Clash of the Professionals (1985)
Criminal, The (1977)
Cruel Killer (1971)
Cute Foster Sister (1979)
Dead Rivalry, A (1976)
Deadly Strike (1978)
Death Duel of Mantis (1978)
Desperate Avenger (1975)
Desperate Chase, The (1971)
Devil's Owl, The (1977)
Devilish Killer, The (1971)
Dragon Dies Hard (1977)
Dragon of the Swordsman (1978)
Dream Sword, The (1979)
Dreaming Fists with Slender Hands (1979)
Dual Flying Kicks (1978)
Duel with the Devils (1977)
Dumb Ox, The (1974)
Dynamite Trio (1982)
Eighteen Jade Arhats, The (1978)
Eunuch of the Western Palace (1979)
Excelsior (1974)
Exit the Dragon, Enter the Tiger (1976)
Fierce Among Strong (1975)
Fist of Shaolin (1973)
Five Devil Ghost, The (1971)
Four Real Friends (1974)
Furious Killer, The (1973)
Furious Slaughter (1972)
Fury in Storm (1974)
Gallant, The (1972)
Gambler's Duel, The (1981)
Gathering of Heroes, A (1973)
General Stone (1976)
Ghost Hill, The (1971)
Gold Snatchers (1973)
Good, the Bad and the Loser, The (1976)
Goodbye Bruce Lee: His Last Game of Death (1975)
Grand Passion, The (1970)
Great Cheat, The (1981)
Green Jade Statuette (1978)
Heavenly Sword (1971)
Hero of the Time (1979)
Hero, The (1972)
Heroine of Tribulation (1981)
Idiot Swordsman, The (1979)
Imperial Sword (1977)
Imperial Sword, Crouching Devil (1981)
Invincible Super Guy (1976)
Invincible Sword (1971)
Invincible, The (1972)
Invisible Terrorist (1976)
Iron Fan and Magic Sword (1971)
Iron Man, The (1974)
Killer from Above (1977)
Knight Errant (1973)
Kung Fu Mama (1973)
Kung-Fu of Eight Drunkards (1980)
Legend of Bruce Lee (1976)
Lily Under The Muzzle (1982)
Lion's Heart (1972)
Little Flying Dragon (1982)
Ma Su Chen (1972)
Magic Mod (1993)
Magnificent Chivalry (1971)
Marvelous Stunts Of Kung Fu (1979)
Massacre Survivor, A (1979)
Master of the Flying Guillotine (1976)
Mighty One (1971)
Ming Patriots, The (1976)
Mission Kiss and Kill (1979)
Murder Masters of Kung Fu (1973)
My Blade, My Life (1982)
My Life's on a Line (1978)
Ninja Pirates (1981)
One Arm Chivalry Fights against One Arm Chivalry (1977)
One Armed Boxer, The (1971)
One Armed Swordsman Against Nine Killers (1976)
One Armed Swordsmen (1976)
Opium Trail, The (1973)
Patriotic Heroine, The (1971)
Rainny Night's Killer (1974)
Return of the Chinese Boxer (1977)
Return of the Tiger (1977)
Revenge of the Iron Fist Maiden (1972)
Revenge of the Shaolin Master (1979)
Rickshaw Puller (1974)
Rider of Revenge (1971)
Savage Killers (1976)
Screaming Tiger (1973)
Seaman No. 7 (1973)
Secret of Chinese Kung Fu (1977)
Seven Commandments of Kung Fu, The (1979)
Seven Steps of Kung Fu (1979)
Shanghai Massacre (1981)
Shaolin 36 Beads, The (1981)
Shaolin Avengers, The (1976)
Shaolin Deadly Kicks (1977)
Shaolin Death Squads (1977)
Shaolin Kung Fu Master (1978)
Shaolin Kung Fu Mystagogue (1976)
Shaolin Red Master (1978)
Shaolin Traitor (1977)
Snaky Knight Fight Against Mantis (1978)
Story In Temple Red Lily, The (1979)
Sunset in the Forbidden City (1976)
Tai Chi Shadow Boxing (1980)
Touch of Zen, A (1971)
Woman Of The Hour (1978)
World of the Drunken Master (1979)