That cameo appearance in Sunday’s episode might mean bigger things to come for the Immortal Universe.

The veils between the worlds ofAnne Rice’sImmortal Universegrow thin, allowing individuals to cross over to the other side.

Sunday’sMayfair Witchesturned into a mini crossover event.

Alexandra Daddario, Mayfair Witches, Jacob Anderson, Interview with the Vampire

Alexandra Daddario in ‘Mayfair Witches’; Jacob Anderson in ‘Interview with the Vampire’.Credit:Skip Bolen/AMC; Larry Horricks/AMC

Is there a vampire who could talk to Lasher?'

There’s a character in their world, and he’s a student of Lestat."

So they decided to give him a name.

Jacob Anderson as Louis De Point Du Lac and Gabriel Freilich as Pale Young Vamp - Interview with the Vampire _ Season 2

Gabriel Freilich as Felix, Jacob Anderson as Louis in ‘Interview with the Vampire’ season 2.Larry Horricks/AMC

“It’s not just a cameo, it is not just an Easter egg,” she said.

“Its actually somebody bringing Lestats worldview into our show and trying it out with Lasher.

And that felt interesting and significant.

Of course, it doesnt stick.

It has to be earned.

Yes, I keep thinking, When can we talk about Rowan and Lestat?

But it needs to build.”

The latter follows the secret agency featured prominently onMayfair Witchesthat monitors the supernatural world.

Nicholas Denton (Dangerous Liaisons) will star onThe Talamasca, which is slated to premiere sometime this year.

We don’t need prophetic magic to see that Felix is just the beginning.