Demon Slayer: Kimetsu no Yaiba You Must Master a Single Thing (Season 1, Episode 17)
TV-MA
TV Episode | 24 min | Animation, Action, Adventure

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Demon Slayer: Kimetsu no Yaiba

You Must Master a Single Thing (Season 1, Episode 17)

TV-MA

TV Episode | 24 min | Animation, Action, Adventure

Zenitsu finds himself alone in the woods where he encounters a spider with a human face. Despite being terrified he does his best and manages to defeat the spider human using a new technique.

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Cast	+ Add Cast
23 cast members

Name	Known for
Natsuki Hanae Tanjiro Kamado (voice) Tanjiro Kamado (voice) See fewer	Demon Slayer: Kimetsu no Yaiba (2019)
Hiro Shimono Zenitsu Agatsuma (voice) Zenitsu Agatsuma (voice) See fewer	Demon Slayer: Kimetsu no Yaiba - The Movie: Mugen Train (2020)
Yoshitsugu Matsuoka Inosuke Hashibira (voice) Inosuke Hashibira (voice) See fewer	Sword Art Online (2012)
Manaka Iwami Chuntaro (voice) Chuntaro (voice) See fewer	【Oshi No Ko】 (2023)
Shigeru Chiba Jigoro Kuwajima (voice) Jigoro Kuwajima (voice) See fewer	Dragon Ball Z: Battle of Gods (2013)
Yoshimasa Hosoya Kaigaku (voice) Kaigaku (voice) See fewer	Attack on Titan (2013)
Ryôko Shiraishi Older Sister Spider Demon (voice) Older Sister Spider Demon (voice) See fewer	Tekken 7 (2015)
Shôtarô Morikubo Older Brother Spider Demon (voice) Older Brother Spider Demon (voice) See fewer	Final Fantasy VII: Advent Children (2005)
Tetsu Inada Father Spider Demon (voice) Father Spider Demon (voice) See fewer	Kamen Rider × Super Sentai: Super Hero Taisen (2012)
Zach Aguilar Tanjiro Kamado (voice) (version: English) Tanjiro Kamado (voice) (version: English) See fewer	Demon Slayer: Kimetsu no Yaiba - The Movie: Mugen Train (2020)
Johnny Yong Bosch Giyu Tomioka (voice) (version: English) Giyu Tomioka (voice) (version: English) See fewer	Akira (1988)
Khoi Dao Additional Voices (voice) (version: English) Additional Voices (voice) (version: English) See fewer	March Comes in Like a Lion (2016)
John DeMita Zenitsu's teacher (voice) (version: English) Zenitsu's teacher (voice) (version: English) See fewer	Princess Mononoke (1997)
Kellen Goff Spider Demon (Father) (voice) (version: English) Spider Demon (Father) (voice) (version: English) See fewer	Five Nights at Freddy's: Security Breach (2021)
Lin Hu Teoni / Yushirou (voice) Teoni / Yushirou (voice) See fewer	Journey to the Forbidden Valley (2017)
Aleks Le Zenitsu Agatsuma (voice) (version: English) Zenitsu Agatsuma (voice) (version: English) See fewer	Demon Slayer: Kimetsu no Yaiba - The Movie: Mugen Train (2020)
Erica Lindbeck Spider Demon (Elder Sister) (voice) (version: English) Spider Demon (Elder Sister) (voice) (version: English) See fewer	Spider-Man (2018)
Gui Niang Shinobu Kochou (voice) Shinobu Kochou (voice) See fewer	Full-Time Magister (2016)
Bryce Papenbrook Inosuke Hashibira (voice) (version: English) Inosuke Hashibira (voice) (version: English) See fewer	Attack on Titan (2013)
Derek Stephen Prince Spider Demon (Elder Brother) (voice) (version: English) Spider Demon (Elder Brother) (voice) (version: English) See fewer	Turbo: A Power Rangers Movie (1997)
Alejandro Saab Zenitsu's senior apprentice (voice) (version: English) Zenitsu's senior apprentice (voice) (version: English) See fewer	Hell's Paradise: Jigokuraku (2023)
Abby Trott Chuntaro (voice) (version: English) Chuntaro (voice) (version: English) See fewer	Carmen Sandiego (2019)
You-Wu-Yue-Shan Tanjirou Kamado / Naho Takada / Teruko (voice) Tanjirou Kamado / Naho Takada / Teruko (voice) See fewer	Boruto: Naruto the Movie (2015)