Marriage Toxin Anime English Voice Cast Announced: First Episode Now Streaming!
One of the most unique productions in the anime world recently, Marriage Toxin, continues to expand its global audience with its English-dubbed version. Crunchyroll has officially announced the highly anticipated English dub cast, and the first episode became available on the platform as of Tuesday, April 21, 2026. In the lead role, Ethan Gallardo voices Hikaru Gero, a character with poor social skills but peak assassination abilities, while the cunning marriage scammer Mei Kinosaki, who guides him, is brought to life by experienced voice actress Brittney Karbowski.
The story revolves around Gero, the heir to a centuries-old clan of poison masters. Living as an elite assassin of the underworld, Gero faces pressure from his clan: either he must marry and produce an heir, or his sister Akari (voiced by Taylor Murphy) will be forced to marry a man she does not love. Wanting to save his sister from this fate, Gero forms an unexpected partnership with the 'marriage scammer' Kinosaki, whom he met during an operation. The duo's action-packed and equally hilarious 'marriage hunt' adventure promises both excitement and laughter to viewers.
Marriage Toxin first began serialization in April 2022 on Shueisha's popular Shonen Jump+ platform. The manga, written by Joumyaku and illustrated by Mizuki Yoda, quickly became one of the most-read works on the digital platform, reaching a massive collection of 17 volumes. The anime adaptation is produced by Bones Film, a branch of industry giant Studio Bones. Motonobu Hori, known for works such as Carole & Tuesday and Metallic Rouge, sits in the director's chair, while the series' music is composed by Taisei Iwasaki and Yuma Yamaguchi.
The great success achieved by 'assassin'-themed romantic comedies like Spy x Family in recent years further solidifies the interest in Marriage Toxin. The anime, which premiered in Japan on April 7, has already become one of the most notable productions of the 2026 spring season with its high-quality animation and dynamic fight choreography. With the addition of the English dub, Gero's most difficult mission yet—the struggle to 'find the right partner'—seems set to resonate even further worldwide. New episodes will continue to be released every Tuesday on Crunchyroll.
