As a little bit of trivia, I actually watched the English version of Hazbin Hotel first, but I couldn't understand the English in the scene where Vaggie talks to Angel about Alastor, and I didn't even know Alastor's name. I learned Alastor's name from watching the Japanese version.

And then there's the scene where Charlie talks about the mysterious devil in the front door, and in the scene where he says the radio deamon is at the door, misunderstands that it's the red deamon and calls him the red deamon.

(The translation may be a little wrong)