Rob Lucci, the strongest assassin of CP9 and later a leading agent of CP0 in One Piece, is voiced by Tomokazu Seki in the original Japanese version and Jason Liebrecht in the English dub. Seki has portrayed Lucci since the character’s debut during the Water 7 and Enies Lobby arcs, while Liebrecht has become the definitive English voice for the fan-favorite antagonist.

Japanese Voice Actor: Tomokazu Seki

Date of Birth

September 8, 1972.

About Tomokazu

Tomokazu Seki is one of Japan’s most accomplished voice actors, known for an extraordinary range that spans heroes, villains, comedic characters, and dramatic leads. Since the early 1990s, he has built an extensive career across anime, games, films, and dubbing work.

In One Piece, Seki voices Rob Lucci, a cold, calculating government assassin whose immense strength and unwavering loyalty to the World Government made him one of Monkey D. Luffy’s most formidable opponents. Seki’s performance emphasizes Lucci’s calm confidence, ruthless personality, and intimidating presence, helping establish him as one of the franchise’s most memorable villains.

Hometown

Fukagawa, Tokyo, Japan.

Career Highlights

Some of Tomokazu Seki’s most notable roles include:

  • Rob Lucci — One Piece
  • Gilgamesh — Fate franchise
  • Kyo Sohma — Fruits Basket
  • Shinya Kogami — Psycho-Pass
  • Panda — Jujutsu Kaisen
  • Kanji Tatsumi — Persona 4
  • Van Fanel — The Vision of Escaflowne
  • Domon Kasshu — Mobile Fighter G Gundam
  • Enrico Pucci — JoJo’s Bizarre Adventure: Stone Ocean
  • Suneo Honekawa — Doraemon

Full Current Filmography

The following list highlights major documented anime roles and is not intended to be a complete record of every credit.

Television Anime

1994

  • Mobile Fighter G Gundam — Domon Kasshu

1996

  • The Vision of Escaflowne — Van Fanel

2001

  • Fruits Basket — Kyo Sohma

2004

  • One Piece — Rob Lucci

2012

  • Psycho-Pass — Shinya Kogami

2014

  • Yo-kai Watch — Whisper

2018

  • Persona 4: The Animation — Kanji Tatsumi

2020

  • Jujutsu Kaisen — Panda

2021

  • JoJo’s Bizarre Adventure: Stone Ocean — Enrico Pucci

This filmography reflects major documented roles and may not be exhaustive.

Critical Reception

Tomokazu Seki’s portrayal of Rob Lucci is frequently praised for its controlled intensity. Unlike many anime villains who rely on loud, emotional performances, Lucci remains calm and composed even during battle. Seki’s understated approach enhances the character’s menace and helps make Lucci one of the most intimidating government agents in One Piece. Many fans consider Lucci’s confrontation with Luffy at Enies Lobby one of the greatest performances in Seki’s long career.

Our Sources

English Voice Actor: Jason Liebrecht

Date of Birth

February 16, 1977. (Wikipedia)

About Jason

Jason Liebrecht is an American voice actor, ADR director, and scriptwriter known for his extensive work in anime dubbing. Since the early 2000s, he has voiced numerous heroes, antiheroes, and villains across some of anime’s most popular franchises.

In One Piece, Liebrecht voices Rob Lucci, the elite World Government assassin and one of Luffy’s most dangerous adversaries. His performance captures Lucci’s cold intelligence, ruthless efficiency, and unwavering confidence. Liebrecht’s portrayal has been praised for preserving the character’s intimidating presence throughout both the CP9 and CP0 storylines.

Hometown

Houston, Texas, United States. (Wikipedia)

Career Highlights

Some of Jason Liebrecht’s most notable roles include:

  • Rob Lucci — One Piece
  • Dabi — My Hero Academia
  • Zeke Yeager — Attack on Titan
  • Hei — Darker than Black
  • Yato — Noragami
  • Syaoran Li — Tsubasa: Reservoir Chronicle
  • Champa — Dragon Ball Super
  • Kyo Sohma — Fruits Basket (2019)
  • Mordecai Heller — Last Exile
  • Lucciola — Last Exile

Full Current Filmography

The following list highlights major documented credits and may not be exhaustive.

Anime Series

2004

  • Samurai 7 — Rikichi

2006

  • Darker than Black — Hei

2008

  • Tsubasa: Reservoir Chronicle — Syaoran Li

2014

  • Noragami — Yato

2015

  • One Piece — Rob Lucci

2019

  • Fruits Basket — Kyo Sohma

2020

  • Attack on Titan: The Final Season — Zeke Yeager

2021

  • My Hero Academia — Dabi

2024

  • One Piece (Egghead Arc Dub Episodes) — Rob Lucci

Anime Films

2019

  • One Piece: Stampede — Rob Lucci

2022

  • One Piece Film: Red — Rob Lucci

Video Games

Notable Game Credits

  • Borderlands 3 — Additional Voices
  • Dragon Ball Xenoverse 2 — Champa
  • One Piece Odyssey — Rob Lucci
  • Smite — Various Voices
  • Paladins — Various Voices

This filmography reflects publicly documented credits and may not be exhaustive.

Critical Reception

Jason Liebrecht’s portrayal of Rob Lucci is widely praised by English-dub viewers for its calm, controlled menace. Rather than portraying Lucci as an overtly theatrical villain, Liebrecht emphasizes the character’s professionalism and unwavering belief in “Dark Justice,” making his threats feel more genuine and intimidating.

Fans frequently cite Lucci’s battles with Luffy in Enies Lobby and Egghead as highlights of Liebrecht’s performance. His ability to maintain a composed, emotionless delivery while still conveying danger has made his interpretation one of the most respected villain performances in the One Piece English dub.

Our Sources

Social Media

Published by Limarc Ambalina

Limarc Ambalina is the founder of Japan Bound, a website covering all things Japan — from travel and culture to anime, manga, and pop culture. He is also the Director of Content at ISNation and the former VP of Editorial at HackerNoon. Based in Japan, he has been writing about Japanese life and entertainment since 2019, growing the site to over 2.4 million views.

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