Near the beginning of the episode, the original Red Tornado's bucket helmet can be seen on the shelf with other items. The original Red Tornado was Ma Hunkle, a golden age superhero with the Justice Society, and a popular comedic hero with DC.
Jane Carr (Fairy Godmother) also voiced a fairy on the Nickelodeon show The Fairly OddParents (2001), as Cosmo's mother Mama Cosma.
Sara mentioning that she'd been in Salem is a reference to "Out of Time", when she was time scattered and nearly hanged as a witch.
Laura Regan (Jane) and Nick Zano (Nate) played brother and sister on the Fox television show Minority Report (2015), although the two don't share any scenes together in this episode.