Sevigny's character of Janelle Yearly (Maren's mother) isn't given a lot of screen time, but she still makes quite an impact. An "eater" herself who has been institutionalized, Janelle helps Maren understand her own tendencies and piece together her past. Gattabrusi says making Sevigny look downtrodden was a challenge in itself, given her natural beauty. To give her a jarring transformation, he created a wig that made it look like her hair had been buzzed off.
"I had this short wig and I sewed it into her hair," Gattabrusi says. "The first time that I put her in it she was a little bit shocked. [The hair] is a very strong instrument to change the identity or personality. She took her time to feel the character. And Luca was excited about the result. Chloe was excited because she felt it was a big help [for developing her character]. It was only a couple of scenes, but it was very important that she was looking like the right character with the right hair."