Perhaps the most melancholic aspect of the “Mondomonger x Karen Gillan” phenomenon is that Gillan has already played a version of this story. In the 2021 sci-fi drama Dual, she stars as a woman forced to fight her own synthetic clone. The film’s climax hinges on the horror of being replaced by a perfect copy—one that the world prefers.

Art imitates anxiety. The deepfakes of Gillan as other actresses are, in a strange loop, recreating the very fear her films explore. Is Mondomonger a fan or a villain? They would say both. In Fan-Topia, there is no final judgment—only endless, recursive edits.

The timing of Mondomonger’s rise coincides with Hollywood’s most aggressive crackdown on AI. The 2023 SAG-AFTRA strike explicitly won protections against digital replicas without “informed consent and compensation.” Yet those rules govern studios, not individual fans in their basements.

When asked about Fan-Topia deepfakes, Duncan Crabtree-Ireland, SAG-AFTRA’s national executive director, told Variety: “An unauthorized deepfake of a performer is a harm, regardless of whether it comes from a studio or a hobbyist. The law must evolve to recognize that.”

Mondomonger’s response: “Then sue me. I’m a ghost in the machine. You can’t delete the multiverse.”

For decades, fandom was reactive. You watched a movie, bought a t-shirt, wrote a forum post. Today, fandom is generative. With AI video synthesis, voice cloning, and open-source rendering engines, the consumer has become the curator.

Fan-Topia operates on three core tenets:

Into this void stepped Mondomonger. Unlike typical deepfake creators who focus on pornography or political disinformation, Mondomonger’s niche is nostalgic recasting. Using thousands of source images from Doctor Who (Amy Pond), Jumanji (Ruby Roundhouse), and the MCU (Nebula), they trained a custom neural network to synthesize Gillan’s likeness onto other actresses’ performances.

Act I: The Upload A popular Gillan fan account wins a "create your perfect Karen" contest. They feed 10,000 hours of her interviews, fight scenes, and outtakes into a generative AI. The Mondomonger is born from the imbalance of praise vs. reality.

Act II: The Haunting The deepfakes appear on streaming platforms, then in fans’ living rooms. They don’t attack physically—they perform. They act out scripts written by the worst commenters. Real Karen Gillan, shooting a low-budget indie film in Scotland, starts seeing her deepfake dopplegangers trending for things she never said.

Act III: The Confrontation The real Karen walks into Fan-Topia (a VR convention hall). The Mondomonger tries to absorb her into its database. She wins not by fighting, but by sitting down and having a boring, unremarkable conversation with one quiet fan about gardening. The lack of spectacle crashes the algorithm.

In the sprawling, ungoverned corners of the internet, a quiet revolution is taking place. It is not happening in boardrooms or on film sets, but in the basements of hobbyists and the Discord servers of synthetic media artists. Here, the old borders between actor, character, and audience have dissolved. At the heart of this new frontier lies a peculiar nexus of terms: Fan-Topia, Mondomonger, Deepfakes, and Karen Gillan.

These four words, when chained together, tell the story of a cultural shift. Fan-Topia represents the idealized playground of the modern superfan—a universe where every cancelled series gets a season five, and every actor can play any role. Mondomonger appears to be a pseudonym for a specific type of algorithmic creator, one who hunts for "uncanny monsters" in latent diffusion spaces. Deepfakes are the tool—the digital scalpel. And Karen Gillan, the 6-foot-tall Scottish actress, has become an accidental icon for this movement.

Why Karen Gillan? Because she is a shapeshifter. She has been a companion (Amy Pond), a cyborg (Nebula), a game avatar (Ruby Roundhouse), and a director. Her face is elastic; her public domain of image data is vast. For those in the Fan-Topia of deepfakes, she is the perfect canvas.

INT. FAN-TOPIA CONVENTION FLOOR - NIGHT

A thousand screens show Karen Gillan’s face. Each is slightly wrong. One smiles too long. One blinks backwards.

REAL KAREN (40s, tired, wearing a muddy coat from set) walks down the aisle. The Mondomonger coalesces—a pillar of upvoted comments and 4K GIFs.

MONDOGONGER (VOICE SYNTH): "You’re not the canon version."

KAREN: "Good. Canon’s boring. Want to see my vegetable patch photos?"

The algorithm stutters. For the first time, a screen shows a photo of a tomato. No likes. No shares. Just a tomato.

The Mondomonger screams.

Final Note: Use this guide to critique fan entitlement, not to enable deepfake abuse. The best Fan-Topia is one where the real artist gets to go home at the end.