Trivia / Tear Along the Dotted Line

• Acting for Two: Rech voices everyone minus the Armadillo, and other international editions also have two people, or even just one actor, voicing everyone. The second half of the final episode suddenly change this, with Sarah, Secco, Alice and her parents getting different voice actors. A clever way to show that they're based on real people and not just cartoon caricatures, meaning that Zero finally understands that people are more complex than the image he has of them and that he needs to get outside of his own head - also represented by the Armadillo momentarily leaving him.
• What Could Have Been: Some early articles about the series state that the original dubbing would have had famous actor Elio Germano voicing Zero's friend Secco. In the end Zerocalcare ended up voicing almost all the characters himself (until the final episode) and the only celebrity voice actor was Valerio Mastandrea as the Armadillo.

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