Grandma Ylfa Jottensdottir

A card names her Grandma Ylfa Jottensdottir, with the line Ears, Eyes and Teeth of a Normal Size NA E4·01:36:35. She comes trundling up a forest path behind Ylfa with a little shawl over her shoulders and a parcel of wildflowers, and greets her with "Oh, hello! Ylfa!" NA E4·01:36:20 NA E4·01:36:38 When Ylfa asks her to stray from the path, she says Ylfa needs to listen to her mother because there are wolves in this forest NA E4·01:37:02. She agrees to go and make oatmeal cookies NA E4·01:38:18.

In the fourth episode Ylfa recognizes her as her grandmother, and Ylfa says that she always thought of her as "the anti-mom" NA E4·01:36:41 NA E4·01:37:40. Brennan says her ears are bigger than Ylfa remembers NA E4·01:40:11. When Ylfa accuses her of tricking her, the grandmother says "It's not that I'm in disguise." and transforms into a werewolf NA E4·01:41:09 NA E4·01:41:18. She says she misses Ylfa more than anything NA E4·01:41:26. She tells Ylfa "You're my favorite little girl in the whole world, and whatever you choose to fight for, I know is right." NA E4·01:42:15 Brennan says she then becomes more wolf-like, as if she and the Big Bad Wolf are maybe the same person or thing, or a part of her ate the wolf too NA E4·01:42:43. She tells Ylfa that real friends "see the wolf in you and love it too" NA E4·01:43:03.

In the seventh episode, in a vision, the grandmother says "Red. How did you get here?" and Brennan narrates the Stepmother biting off her head and shoulders and eating her NA E7·01:42:56 NA E7·01:43:00. In The Lines Between a soft old woman's voice in the Auroratory says "Once upon a time, there was a little girl named Little Red Riding Hood.", and Brennan says Ylfa recognizes it as her grandmother NA E8·00:40:48 NA E8·00:41:02. Ylfa says her grandma is trapped out there NA E8·00:41:08.

In the ninth episode a card with her name appears in Ylfa's memory when the figure in the bed in a nightcap answers Ylfa, and Brennan then shows that it is a towering wolf, who says it has eaten her and she is in its stomach NA E9·00:52:08 NA E9·00:54:05 NA E9·00:55:21. In the eleventh episode the Wolf learns that Ylfa is named after her grandmother, and Brennan shows him flickering to look like her NA E11·00:11:18 NA E11·00:11:33. In the reflection of the Wolf's eyes Ylfa sees her grandmother as a little girl in a red cloak walking through the forest, whom she recognizes from an old family portrait NA E11·00:11:49.

In the eighteenth episode Ylfa meets a little girl whose name she cannot hear, and Brennan says she is looking at her grandma, whose name is her name NA E18·01:07:34 NA E18·01:08:02.