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You are out playing too late, you degenerate harlot!
~ Jack the Ripper's most famous quote.
Time for the slaughter, you naughty pigs!
~ Jack the Ripper

Jack the Ripper is a minor antagonist in JoJo's Bizarre Adventure: Phantom Blood. He is based on the notorious unidentified historical serial killer.

In Japanese, he was voiced by Hisao Egawa in the PS2 game adaptation of JoJo's Bizarre Adventure: Phantom Blood and Naomi Kusumi in the anime. He was voiced by Paul St. Peter in the English dub of said anime.


Jack is shown to be tall, very muscular in appearance combined with a gentlemanly attire.


This one's mad as a hatter! Dio's evil, yeah, but I ain't seen him jump out of any animal so far!
~ Robert E.O. Speedwagon on Jack the Ripper.

With his good looks and clothing, he is able to lure his potential female victims to walk with him on a dark night. Then he would reveal his true colors, eviscerating the unlucky woman victim to death with his knife or a scalpel. As a zombie, his bloodlust becomes even worse. Jack is shown to have a desire nothing other than to cut things and cause pain while he is at it.


Jack used the guise of a nobleman to lure women, after which he killed them in a surgical fashion. His method of killing was already gripping London with panic and fear.

When he finished off killing his final victim (presumed to be Mary Jane Kelly, his fifth prey in real life) as a human, Dio Brando encounters him and turns Jack into one of his zombie underlings. After this Jack turns into an abominable monster, feeding on corpses given to him by Dio. The group of Jonathan Joestar, Will Zeppeli and Speedwagon is attacked by Jack inside the tunnel entrance to the Windknights village, using various scalpels buried into his body to attack. After Will deflects the scapels with his Wine Cutter, Jack opens a secret passage on the tunnel and enters it. Will gives JoJo a glass of wine and tells him to defeat Jack. Jack takes advantage of the darkness and attacks by using a huge torture device, but JoJo learns to use the wine to track down Jack, attacking him from behind a wall and disintegrating him.



  • In the manga, Jack refuses Dio's proposal of becoming his servant at first, but capitulates and becomes a zombie after a failed attempt to kill Dio. In the anime, without a fight Dio simply hypnotizes Jack to come forward so that the former could suck his blood to turn him into a loyal zombie minion.


           JoJo's Bizarre AdventureTitle.png Villains

Phantom Blood
Dario Brando | Stone Mask Vampires (Wang Chan | Jack the Ripper | Bruford | Tarkus | Dio Brando) Undead People

Battle Tendency
New York Police Officers | Brass Knuckle Gangster | Donovan | Straizo | Stone Mask Vampires | Pillar Men (Santana | Esidisi | Wamuu | Kars)

Stardust Crusaders
Gray Fly | Impostor Captain Tennille | Forever | Devo | Rubber Soul | Hol Horse | J. Geil | Nena | ZZ | Enya Geil | Steely Dan | Arabia Fats | Mannish Boy | Cameo | Midler | Egypt 9 Glory Gods (N'Doul | Oingo | Boingo | Anubis | Mariah | Alessi | Daniel J. D'Arby | Pet Shop | Terence T. D'Arby) | Kenny G. | Vanilla Ice | Nukesaku | DIO

Diamond is Unbreakable
Anjuro "Angelo" Katagiri | Keicho Nijimura | Tamami Kobayashi | Toshikazu Hazamada | Yukako Yamagishi | Akira Otoishi | Rohan Kishibe | Bug-Eaten | Yoshihiro Kira | Ken Oyanagi | Yuya Fungami | Toyohiro Kanedaichi | Terunosuke Miyamoto | Cheap Trick | Yoshikage Kira

Vento Aureo/Golden Wind
"Leaky Eye" Luca | Polpo | Mario Zucchero | Sale | Squadra Esecuzioni (Sorbet and Gelato | Formaggio | Illuso | Prosciutto | Pesci | Melone | Ghiaccio | Risotto Nero) | Unità Speciale (Squalo and Tiziano | Carne | Cioccolata | Secco) | Vinegar Doppio | Diavolo

Stone Ocean
Tom Cruise | Gwess | Johngalli A | Thunder McQueen | Foo Fighters | Miraschon | Lang Rangler | Sports Maxx | Viviano Westwood | Kenzou | D an G | Guccio | Miuccia Miuller | Ungalo | Rikiel | Donatello Versus | DIO | Enrico Pucci

Steel Ball Run
Mrs. Robinson | Boomboom Family (Andre Boomboom | L. A. Boomboom | Benjamin Boomboom) | Oyecomova | Pork Pie Hat Kid | Diego Brando | Dario Brando | Dr. Ferdinand | Ringo Roadagain | Soldier | Blackmore | Sandman | Eleven Men | Scarlet Valentine | Mike O. | Wekapipo | Magent Magent | Axl RO | D-I-S-C-O | Diego Brando (Alternate World) | Funny Valentine

Rock Organisms | Locacaca Organization (Yotsuyu Yagiyama | Aisho Dainenjiyama | A. Phex Brothers | Tamaki Damo | Jobin Higashikata | Urban Guerilla | Doremifasolati Do | Poor Tom | Wu Tomoki | Dododo De Dadada | Obladi Oblada | Satoru Akefu | Tooru) | Ojiro Sasame | Kaato Higashikata | Zaihei Nigatake | Milagro Man's Stand User | Dolomite | Radio Gaga

Thus Spoke Kishibe Rohan
Rohan Kishibe | The Beggar | Mutsukabezaka | Gods of the Mountain | Moon Rabbit | Yoma Hashimoto | Yabubako-Hoshi | Eve | Eco-Terrorist

Cool Shock B.T.
B.T. | Police Officer | Kuroyama and Akagawa | Date | The Leader | The Major | Manabu | Manabu's Family | Outlaw Guys

Jorge Joestar
Eduardo Noriega | Funnier Valentine | The Funniest Valentine | Antonio Torres | Alejandro Torres | Javier Cortes | William Cardinal | Dio Brando (Jorge Joestar)

Miscellaneous Spin-Offs & Novels
Old Man Stand User | Absalom | Michal | Scribe Ani | Nameless Child Murderer | Rigatoni | Sogliola Lopez | Takuma Hasumi | Teruhiko Futaba | Hanae Orikasa | Sezione Droghe (Vittorio Cataldi | Angelica Attanasio | Vladimir Kocaqi | Massimo Volpe) | Prisoner 27 | Heaven Ascension DIO | Dija Maker | Scatola | Petsounds | Crossbow Wielder