📏 Character stats

Kekkai Sensen characters: ages, heights & birthdays

The 39 most popular Kekkai Sensen characters, with how old and how tall each one is, their birthday and who voices them.

characters: 39; characters
heights listed: 11; heights listed

Tallest: 207 cm; Dog Hummer
Shortest: 148 cm; Neyka Covalenko
Youngest: 13 (leap year), 52 years old; Zed O'Brien
Oldest: 78; Gilbert F. Altstein

Every character at a glance

Character	Age	Height	Birthday	Japanese voice
Leonardo Watch	19	161 cm	May 14 Taurus	Daisuke Sakaguchi
Zapp Renfro	24	178 cm	November 25 Sagittarius	Kazuya Nakai
Chain Sumeragi	21	–	February 6 Aquarius	Yuu Kobayashi
Klaus von Reinherz	28	201 cm	December 31 Capricorn	Rikiya Koyama
Mary Macbeth	19	–	–	Rie Kugimiya
Steven A. Starphase	32	182 cm	June 9 Gemini	Mitsuru Miyamoto
William Macbeth	19	–	–	Rie Kugimiya
Sonic	–	–	–	Yuuma Uchida
K.K.	36	177 cm	July 1 Cancer	Ai Orikasa
Zed O'Brien	13 (leap year), 52 years old	176 cm	February 29 Pisces	Hikaru Midorikawa
Zetsubouou	–	–	–	Rie Kugimiya
Michella Watch	–	160 cm	April 4 Aries	Nana Mizuki
Nej	–	–	–	Ikue Ootani
Femt	–	–	–	Akira Ishida
Dog Hummer	23	207 cm	July 23 Leo	Mamoru Miyano
Aligura	–	–	–	Satomi Koorogi
Gilbert F. Altstein	78	176 cm	September 17 Virgo	Banjou Ginga
Blitz Abrams	51	189 cm	June 22 Cancer	Akio Ootsuka
Neyka Covalenko	23	148 cm	November 30 Sagittarius	Reina Ueda
Deldro Brody	–	–	October 1 Libra	Keiji Fujiwara
Rajuu Juugee Shizuyoshi	–	–	–	Hidekatsu Shibata
Vivian	–	–	–	Miyuki Sawashiro
Daniel Law	–	–	October 12 Libra	Yuuya Uchida
Patrick Smith	–	–	October 28 Scorpio	Unshou Ishizuka
Roger	–	–	–	Kouzou Shioya
Benjamin Macbeth	–	–	–	Hidenobu Kiuchi
Angelica	–	–	–	Rina Kitagawa
Emma Macbeth	–	–	–	Yukana
Girika	–	–	–	Mamiko Noto
Guabara	–	–	–	Tomomichi Nishimura
Master	–	–	–	Riki Kagami
Don Arlelelle Eruca Fulgrouche	–	–	–	Shouzou Iizuka
Korsakov Ulchenko	–	–	–	Satoshi Mikami
Yahabio	–	–	–	Kazuhiro Yamaji
Ozmald	–	–	–	Fumihiko Tachiki
Shiboroba	–	–	–	Tetsuo Gotou
Martin	–	–	–	Yuuki Kaji
Gregor Maximus	–	–	–	Hiroki Takahashi
Tonio Andretti	–	–	–	Ryoutarou Okiayu

Ages and heights as listed on AniList; where a character grows up during the story, height is the latest one listed. Updated 2026-10-31.

Kekkai Sensen height chart

Kekkai Sensen characters by height

Tallest first, in cm

Dog Hummer207 cm
Klaus von Reinherz201 cm
Blitz Abrams189 cm
Steven A. Starphase182 cm
Zapp Renfro178 cm
K.K.177 cm
Zed O'Brien176 cm
Gilbert F. Altstein176 cm
Leonardo Watch161 cm
Michella Watch160 cm
Neyka Covalenko148 cm

Show as table

Item	Height (cm)
Dog Hummer	207 cm
Klaus von Reinherz	201 cm
Blitz Abrams	189 cm
Steven A. Starphase	182 cm
Zapp Renfro	178 cm
K.K.	177 cm
Zed O'Brien	176 cm
Gilbert F. Altstein	176 cm
Leonardo Watch	161 cm
Michella Watch	160 cm
Neyka Covalenko	148 cm

Kekkai Sensen birthdays through the year

Kekkai Sensen overview Full cast & voice actors 👤 Most popular characters

Kekkai Sensen characters FAQ

Who is the tallest character in Kekkai Sensen?

Dog Hummer, at 207 cm, followed by Klaus von Reinherz (201 cm).

Who is the shortest character in Kekkai Sensen?

Neyka Covalenko, at 148 cm, among the characters with a listed height.

Who is the youngest character in Kekkai Sensen?

Zed O'Brien, listed as 13 (leap year), 52 years old.

How old are the main Kekkai Sensen characters?

Leonardo Watch is 19, Zapp Renfro is 24, Chain Sumeragi is 21, Klaus von Reinherz is 28, Mary Macbeth is 19.

When are the Kekkai Sensen characters' birthdays?

Chain Sumeragi: February 6; Zed O'Brien: February 29; Michella Watch: April 4; Leonardo Watch: May 14; Steven A. Starphase: June 9; Blitz Abrams: June 22; and 9 more on this page.