The Witch of the North is one of the four sorceresses in the Sisterhood of Witches in Oz, representing the power of Wisdom. She warmly welcomes both Zelena, who later becomes the Wicked Witch of the West, and Dorothy Gale, a young girl from Kansas.
- She alludes to the Good Witch of the North from The Wonderful Wizard of Oz.
- The time-travel spell that Zelena tries to enact in Storybrooke requires ingredients that represent the same virtues as the Sisterhood. While the Witch of the North represents Wisdom, so does Rumplestiltskin's brain, which is used for the spell.
- S3, E20: "Kansas" (flashback)