According to Phil Klemmer the Sisqo cameo and fight sequence to "Thong Song" come about as he stated: "Were you just looking for a way to top Return of the Mack (2017)? [Laughs] I was out of the room when we were talking about the Museum of Bad Ideas and what we could find there, and all of a sudden, the name Sisqó was up on the board Then you're like, "Oh my God, the thing that was a joke on the board is now completely integral to the finale of the season, and we haven't even called Sisqó." We were totally back-against-the-wall, and we're like, "This is not a joke anymore. This is completely load-bearing. Our final action sequence requires a soundtrack and an animatronic Sisqo." It was the most terrifying call I've ever made in my life, because I had to try to explain Sisqó what our show was and, you know, our show's bats t. By the time you get to the finale, to try to be like, 'All right, here's the deal: The Greek Fates have this Loom, and free will has been crushed, and there's this museum, and yeah, technically, you're part of the bad ideas, but secretly, as writers, we think the bad ideas are the best,' and he was just like, 'Yep, totally, I get it. Yeah, I've got that outfit from the video. Yeah, I'll dye my hair silver.' All the actors went completely berserk and were crowding around video village, filming the monitor as he performed. You're just like, 'This was not guaranteed. He could have said no. He could have not still been the Sisqó we remembered.' There are times where you are just like, 'God, we don't deserve the good luck that we get on this show,' but man, bless Sisqó!"
Charlie references Napoleon almost killing the Legends because of an ABBA record, referencing Here I Go Again (2018).
Courtney Ford returns to the show for the first time since her appearance in Romeo V. Juliet: Dawn of Justness (2020), though instead of Nora Darhk, she plays Marie Antoinette, who was last seen in Mortal Khanbat (2020).
Zari Tomaz and Nate wear the same outfits while saying goodbye as they wore in Here I Go Again (2018).
Sara talks about where the Legends were before becoming part of the team: Nate having a kooky conspiracy theory, Mick being a temporal bounty hunter, and Charlie being stuck in a disco outfit.