Hunter B-15 goes by the identity of Verity Willis. In the comics, Verity was an ally of Loki.
In a scene in OB's workshop, Loki stands with his arms and legs spread, framed in the circular door way. This image replicates the Vitruvian man sketch by Leonardo DaVinci.
Some of the dialogue in the episode refers to stories. One of Loki's titles in the comics is the God of Stories.