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It is fitting that I kill you myself. You two! Leave us! I am going to enjoy thrusting my sword into you!
~ Kazuki Kasen

Kazuki Kasen is the final antagonist in Grand Theft Auto: Liberty City Stories. He is the older brother of Kenji Kasen and Asuka Kasen.

Kazuki was voiced by Keenan Shimizu.


Early Life

Kazuki Kasen was born in Japan. He moved to the United States with his younger siblings. Later, he married a woman named Toshiko. However, this was an attempt for Kazuki to become the leader of the Yakuza crime syndicate.

When Kazuki became the leader, he bought a casino to increase the Yakuza's standing in Liberty City. Overtime, the casino was successful and it provided the Yakuza with enough money to increase their operations.


Toshiko felt neglected by her husband and decided to weaken his empire. She hired Toni Cipriani to steal the Yakuza's shipment of arms and deliver it to Phil Cassidy. Toshiko also hired Toni to destroy three vans that contained some of the Yakuza's money before they reached Kazuki's casino.


When Kazuki learned about Toni's actions, he developed a desire for revenge. Toni confronted Kazuki on the rooftop of his casino. They engaged in a sword duel. Kazuki was skilled but Toni managed to survive. He decapitated Kazuki and left the body. When Toshiko heard about her husband's death, she killed herself by committing suicide.


  • Toshiko states that Kazuki is a samurai. Kazuki is either a descendant of a samurai family or he follows the Bushido code.
  • Kazuki is alluded to being a closeted bisexual. Toshiko tells Toni that Kazuki prefers the company of his men and then she asks Toni if he understands. Kazuki teases Toni by saying "I am going to enjoy thrusting my sword into you." Toni responds by saying "Yeah, I've heard that about you."



2D Universe
Grand Theft Auto 2
Billy Bob Bean | Claude Speed | Johnny Zoo

Grand Theft Auto Advance
King Courtney | Vinnie

Grand Theft Auto: Chinatown Wars
Chan Jaoming | Huang Lee | Mini Gun Wonsu Assassin | Rudy D'Avanzo | Wu Lee | Zhou Ming

3D Universe
Grand Theft Auto III
Claude | Catalina | Curly Bob | Donald Love | King Courtney | Miguel | Phil Cassidy | Salvatore Leone | Toni Cipriani

Grand Theft Auto: Vice City
Auntie Poulet | Gonzalez | Lance Vance | Leo Teal | Phil Cassidy | Ricardo Diaz | Sonny Forelli | Tommy Vercetti | The Psycho

Grand Theft Auto: San Andreas
B Dup | Big Smoke | Carl Johnson | Eddie Pulaski | Frank Tenpenny | Jizzy B. | OG Loc | Ryder | Snakehead | T-Bone Mendez

Grand Theft Auto: Liberty City Stories
JD O'Toole | Kazuki Kasen | Massimo Torini | Ned Burner | Paulie Sindacco | Phil Cassidy | Salvatore Leone | Toni Cipriani | Vincenzo Cilli

Grand Theft Auto: Vice City Stories
Bryan Forbes | Diego & Armando Mendez | Lance Vance | Marty Jay Williams | Phil Cassidy | Sergeant Jerry Martinez | Victor Vance |

HD Universe
Grand Theft Auto IV
Abdul Amir | Billy Grey | Brian Jeremy | Clarence Little | Clay Simons | Dardan Petrela | Darko Brevic | Derrick McReary | Dimitri Rascalov | Dwayne Forge | Eddie Low | Francis McReary | Gerald McReary | Jim Fitzgerald | Jimmy Pegorino | Johnny Klebitz | Jim Fitzgerald | Luis Lopez | Marki Ashvilli | Mikhail Faustin | Niko Bellic | Patrick McReary | Playboy X | Ray Boccino | Ray Bulgarin | Ray's Goon | Rocco Pelosi | Roman's Kidnapper | Teddy Benavidez | Terry Thorpe | Timur | Vic Manzano | Vince Pelosi | Yusuf Amir

Grand Theft Auto V
Andreas Sanchez | Brad Snider | Clay Simons | D | Devin Weston | Don Percival | Elwood O'Neil | Enzo Bonelli | Franklin Clinton | Jimmy De Santa | Johnny Klebitz | Lamar Davis | Lester Crest | Martin Madrazo | Michael De Santa | Molly Schultz | Ortega | Paige Harris | Patrick McReary | Peter Dreyfuss | Simeon Yetarian | Steve Haines | Stretch | Terry Thorpe | Trevor Philips | Wei Cheng

Grand Theft Auto Online
Avery Duggan | Avon Hertz | Cliffford | GTA Online Protagonists

Altruist Cult | Angels of Death Motorcycle Club | Ballas | Bulgarin Family | C.R.A.S.H. | Cholos | Cliffford Mercenaries | Colombian Cartel | Diaz's Gang | Faustin-Rascalov Family | Federal Investigation Bureau | Forelli Family | International Affairs Agency | Leone Family | Liberty City Triads | Los Santos Triads | Los Santos Vagos | Merryweather Security | O'Neil Brothers | Russian Mafia | Sicilian Mafia | Southside Hoods | SRS | Street Sharks | The Professionals | Trevor Philips Enterprises | Zombotech Corporation

Beta Only
Darkel | Domestobot

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