Mechanical Marie S1E12 — Goodbye, Marie
8.6
Mechanical Marie•Season 1•Episode 12

Goodbye, Marie

8.6/10 · 21 votesDec 21, 202524 min

Ranked #3 of 12 in Season 1•+0.2 vs season avg

Discussion

Marie infiltrates Maynard's mansion in search of an antidote to the poison that took Arthur's memory.

Seasons1

Season 1 Episodes12

Cast11

Nao Toyama

Nao Toyama

Marie Evans (voice)

Haruki Ishiya

Haruki Ishiya

Arthur Louis Zetes (voice)

Chiaki Kobayashi

Chiaki Kobayashi

Noah (voice)

Yuuichirou Umehara

Yuuichirou Umehara

Roy (voice)

Ami Koshimizu

Ami Koshimizu

Marie-2 (voice)

Daishi Kajita

Daishi Kajita

Maynard (voice)

Saima Nakano

Saima Nakano

Bridget (voice)

You Taichi

You Taichi

Isabel (voice)

Shuntaro Hara

Shuntaro Hara

Toby (voice)

Kappei Yamaguchi

Kappei Yamaguchi

Carl Ojisan (voice)

Rieko Takahashi

Rieko Takahashi

Charlotte Oba-san (voice)

Crew1

H

Haruka Ogawa

Background Designer

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Episode Summary

"Goodbye, Marie" is episode 12 of Mechanical Marie season 1. It scored 8.6/10 from 21 votes, ranking #3 of 12 episodes this season (season average 8.4). It aired on December 21, 2025.