The "Robert Singer for President" which has photo of him as a young soldier in Vietnam is an actual photo of Jim Beaver when he was a Marine in Vietnam.
While having sex in the bathroom, Ashley Barrett tells Adam Bourke, "Tony Gilroy had to reshoot all your shit!" a reference to the extensive reshoots on Rogue One: A Star Wars Story (2016), which were overseen by Gilroy.
Ashley Barrett's sexual kink or fetish for having strands of her hair ripped out during intercourse goes back to a compulsion she developed at least as early as We Gotta Go Now (2020) when she involuntarily ripped out a strand of her own hair while watching the live stream of Homelander and the crowd of protesters on her pad.
The title card for the episode is treated in a way to make it look like it says 'The Lucky Boys' from the neon sign in the room, playing with the idea that Butcher is containing himself from killing supes.
Jim Beaver makes an appearance as presidential candidate Robert "Dakota Bob" Singer, a nod to his recurring character Bobby Singer on Supernatural (2005). Both The Boys (2019) and Supernatural (2005) were developed by Eric Kripke.