Carmilla
One version of Carmilla was involved with DollarGraveClub, a vampire organisation headed by Varney and also involving Dracula and Lord Ruthven. Her reputation, among others, caused the Interdimensional Pride Council to react negatively when the Man in Grey tried to make DollarGraveClub a sponsor of the Interdimensional Pride Parade in 2022. (PROSE: A Series of Queer Events)
The Carmilla of Reality 45 went by the name Carmilla la Fanu, and once owned Castle Erenow in Yorkshire. Concordat agents utilised the tax filings for the property to identify the current owner Lady Erenow, that universe's Jenny Nowhere. Michael Béliveau wondered whether Nowhere had picked up a fondness for anagrams from the vampire. (PROSE: To Hell With Good Intentions.)
Behind the scenes
Aristide Twain's illustration of Kim was based on actress Ingrid Pitt in reference to her portrayal of Carmilla for Hammer Productions.