Alex Horn Joins the English Dub Cast of Marriage Toxin
The casting fills out the antagonist roster for the current story arc, as Naruko is the opponent Gero faces in a duel that forces him to reconsider the value of vulnerability and ordinary human strength.
Reporting from 2 sources: Anime News Network, The Fandom Post.
Voice actor Alex Horn has joined the English dub of the television anime Marriage Toxin. Horn announced the role on social media on May 12, 2026, confirming he plays Genya Naruko, a sound master. The episode featuring the character is now streaming on Crunchyroll. The dub is directed by Leeo George, with scripts adapted by Clayton Browning. The series premiered on April 7, 2026, as part of the Ka-Anival!! programming block. Crunchyroll is streaming the show and producing the English version. The anime adapts the manga by Joumyaku and Mizuki Yoda, which has been serialized in Shonen Jump+ since 2022 and collected into twelve volumes. Viz Media publishes the print edition in English. The Japanese cast includes Haruki Ishiya as Hikaru Gero, Shion Wakayama as Mei Kinosaki, and Soma Saito as Genya Naruko. The previously announced English cast features Ethan Gallardo as Hikaru, Brittney Karbowski as Mei, and Taylor Murphy as Akari. Motonobu Hori directs the series at studio Bones Film, with series composition by Kimiko Ueno and character designs by Kohei Tokuoka.
Horn joins a dub cast that already includes Marcus Stimac as Bug Master, Parker Gray as Tomohisa, Cody Savoie as Yosuke, and Xan Cramer as the Narrator. The Fandom Post also lists Hannah Magers and Corey Wilder as the Shiratoris, Richard Barcenas as Ageha's Father, and Maganda Marie as Kyoko Himekawa.
The Japanese voice of Naruko is Soma Saito. The ANN review of episode six notes that Naruko's backstory involves being forced to kill his own brother to prove his strength, a detail that draws a direct parallel to Gero's own upbringing. The review calls the visual quality of the duel "gorgeous" but criticizes the fight's resolution, in which Naruko needs to inhale restorative tree gases and accidentally breathes in Gero's poison, as "a really abrupt way to wrap up the fight."
The episode shifts focus from the duel to the character Shiori, who breaks her classmates out of hypnosis by bluffing that she is a witch. ANN writes that "it's great that Gero's overall level of involvement here is fairly minimal as she pulls this off largely on her own." The review adds that Shiori's fake magic show receives an even larger animation showcase than the duel itself.
The opening theme is "Kill or Kiss" by Yurina Hirate. The ending theme is "Shake Na Baby" performed by AKASKAI. The Japanese cast also includes Anna Nagase as Kyoko Himekawa and Simba Tsuchiya as Piichi Nakagawa, according to The Fandom Post.
Synthesized by Yomimono from the 2 cited sources below, including Japanese-language reporting where cited, then editorially reviewed before publishing.
Sources
- Anime News Network MARRIAGETOXIN ‒ Episode 6
- The Fandom Post Enjoy Your New Wearable Girlfriend In This ‘Marriage Toxin’ TV Anime Clip