Hatchet from the Zoophobia series makes a cameo in the crowd of demons watching the live TV broadcast of Charlie's announcement of opening her own rehabilitation hotel.
Marx from the Zoophobia series makes a cameo during Charlie's "Inside of Every Demon is a Rainbow" song.
The pilot reached over one million views in under twenty-four hours of its release.
One of the TVs inside the bar was showing the Dover Boys short film. Vivienne Medrano previously did animation for The Dover Boys Re-Animated (2018).
Blitzo from Helluva Boss (2019) makes a cameo in the TV audience during Charlie's announcement of her rehabilitation hotel.