Dr. Stone Character Ages, Heights, and Birthdays of Main Cast

Renowned for its captivating premise and engaging characters, Dr. Stone stands out as one of the most compelling shonen series available. The incredible journey of Senku and his companions as they overcome daunting challenges through the lens of science offers an enthralling viewing experience, with numerous scientific breakthroughs celebrated within its narrative.

The core characters of Dr. Stone serve as the powerhouse behind this exceptional anime, making it essential for fans to delve into their profiles. Here, we present the ages, birthdays, and heights of all the prominent figures in the series.

Updated March 8, 2025 by Mark Sammut: As Dr. Stone embarks on its fourth season, subtitled Science Future, the storyline expands into the United States, solidifying its position as one of the most highly regarded anime of Winter 2025. While new faces have joined the narrative, the beloved main characters continue to lead the charge.

Senku Ishigami

The Leader of the Kingdom of Science

Age: 15
Height: 5’7″
Birthday: January 4, 2004
Japanese Voice Actor: Yūsuke Kobayashi
English Voice Actor: Aaron Dismuke
Debut Episode: Season 1, Episode 1 “Stone World”

As a dynamic protagonist, Senku Ishigami is a true testament to what makes Dr. Stone enjoyable. His unique blend of charisma, humor, and intellect sets him apart from typical shonen leads, making him a captivating character that elevates the series significantly. His thrilling scientific discoveries are the highlights of the show, solidifying his status as a fan-favorite.

Taiju Oki

Senku’s Best Friend and the Kingdom of Science’s Powerhouse

Age: 16
Height: 6’2″
Birthday: April 2, 2003
Japanese Voice Actor: Makoto Furukawa
English Voice Actor: Ricco Fajardo
Debut Episode: Season 1, Episode 1 “Stone World”

Taiju Oki, Senku’s closest companion from childhood, contrasts Senku’s intellect with his own considerable physical strength and caring nature. Resurrected from petrification, Taiju becomes a vital asset in executing Senku’s experiments, showcasing his essential role in the Kingdom of Science.

Yuzuriha Ogawa

A Valuable Member of the Kingdom of Science Exceptional with a Needle

Age: 15
Height: 5’2″
Birthday: March 31, 2004
Japanese Voice Actor: Kana Ichinose
English Voice Actor: Brittany Lauda
Debut Episode: Season 1, Episode 1 “Stone World”

Yuzuriha Ogawa, one of the trio affected by the Petrification Event, plays a critical role as Taiju’s love interest and contributes significantly to the Kingdom of Science. Despite her occasional diminished presence in later seasons, Yuzuriha’s impact as a seamstress showcases her versatility beyond a mere supporting character.

Tsukasa Shishio

A Threat-Turned-Ally to the Kingdom of Science

Age: 18
Height: 6’4″
Birthday: October 10, 2001
Japanese Voice Actor: Yuichi Nakamura
English Voice Actor: Ian Sinclair
Debut Episode: Season 1, Episode 1 “Stone World”

Initially the primary antagonist, Tsukasa Shishio challenged Senku with his outdated ideals of a new world. This formidable opponent belonged to a throaty faction driven by brute strength. Subsequent character development led him to ultimately side with Senku and the Kingdom of Science, underlining the theme of evolving perspectives.

Gen Asagiri

Master Manipulator & Negotiator

Age: 19
Height: 5’9″
Birthday: April 1, 2000
Japanese Voice Actor: Kengo Kawanishi
English Voice Actor: Brandon McInnis
Debut Episode: Season 1, Episode 9 “Let There Be the Light of Science”

Gen Asagiri, initially serving under Tsukasa, transitions allegiances after witnessing Senku’s scientific ingenuity. His transformation into an asset for the protagonists exemplifies the series’ exploration of ideological shifts—it’s not always about strength; strategy and intellect also play key roles.

Kohaku

Born to the Stone World, Kohaku is a Powerful Warrior Who Joins the Kingdom of Science

Age: 16
Height: 5’3″
Birthday: August 8, 5723
Japanese Voice Actor: Manami Numakura
English Voice Actor: Felecia Angelle
Debut Episode: Season 1, Episode 6 “Two Nations of the Stone World”

Kohaku’s arrival introduces a renewed sense of momentum in the story. Her relationship with Senku and mastery in combat add considerable vigor to the Kingdom of Science’s endeavors. Not only does she exhibit remarkable strength and agility, but her presence provides refreshing comic relief throughout the series.

Chrome

Senku’s Prodigy Who is Passionate About Science

Age: 16
Height: 5’7″
Birthday: February 4, 5723
Japanese Voice Actor: Gen Satō
English Voice Actor: Matt Shipman
Debut Episode: Season 1, Episode 7 “Where Two Million Years Have Gone”

With infectious energy and an eagerness to grasp the principles of science, Chrome becomes an invaluable ally for Senku. His dedication not only enhances his own scientific acumen but also strengthens the overall mission of the Kingdom, making him a delightful addition to the main cast.

Suika

A Lovable Character Who is More than Just Comedic Relief

Age: 9
Height: 3’11”
Birthday: 5730 AD
Japanese Voice Actor: Karin Takahashi
English Voice Actor: Sarah Wiedenheft
Debut Episode: Season 1, Episode 8 “Stone Road”

Initially perceived as comic relief, Suika’s character quickly transcends those boundaries, thanks to her heartfelt journey and challenges. Her nearsightedness leads to a touching moment when Senku provides her with contact lenses, marking a turning point in her arc and showcasing both her resilience and growth.

Ryusui Nanami

The Best Captain to Guide the Kingdom of Science to New Areas (and Heights)

Age: 20
Height: 6’1″
Birthday: November 11, 1998
Japanese Voice Actor: Ryōta Suzuki
English Voice Actor: Clifford Chapin
Debut Episode: Ryusui Special Episode

Although Ryusui is introduced later in the series, his impact is profound. Best known as the Kingdom of Science’s captain and an expert sailor, he plays a critical role in navigating uncharted waters and paving the way for new adventures. His leadership qualities and dynamic interactions with Senku highlight the series’ themes of collaboration and intellect.

Ages, Heights, and Birthdays of Other Dr. Stone Characters

A wealth of supporting characters in Dr. Stone add depth and intrigue to the narrative. Below are their ages, heights, and corresponding details:

Character	Age	Height	Birthday	Japanese Voice Actor	English Voice Actor	Debut Episode
Ginro	16	5’4″	April 7, 5723	Ayumu Murase	Justin Briner	Season 1, Episode 7 “Where Two Million Years Have Gone”
Momiji Homura	17	4’9″	March 3, 2002	Aki Toyosaki	Megan Shipman	Season 1, Episode 19 “To Modernity”
Hyoga Akatsuki	23	6’2″	November 30, 1995	Akira Ishida	Jerry Jewell	Season 1, Episode 18 “Stone Wars”
Kaseki	60	5’1″	February 9, 5679	Mugihito	Kenny Green	Season 1, Episode 11 “Clear World”
Kinro	18	5’11”	July 9, 5721	Tomoaki Maeno	Jessie James Grelle	Season 1, Episode 7 “Where Two Million Years Have Gone”
Magma	22	6’1″	August 22, 5717	Yasuhiro Mamiya	J. Michael Tatum	Season 1, Episode 9 “Let There Be the Light of Science”
Nikki Hanada	17	5’11”	August 31, 2001	Atsumi Tanezaki	Katelyn Barr	Season 2, Episode 2 “Hot Line”
Ukyo Saionji	24	5’8″	June 5, 1994	Kensho Ono	Mark Allen Jr.	Season 2, Episode 2 “Hot Line”
Yo Uei	22	5’10”	January 31, 1998	Yoshiki Nakajima	Kyle Phillips	Season 2, Episode 6 “Prison Break”

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