A Gaming YouTuber Says an AI-Generated Clone of His Voice Is Being Used to Narrate 'Doom' Videos
May 21, 2025 2:00 PM Mark Brown, who posts game explainers to his Game Maker's Toolkit channel, says his persona has been plagiarized. Photo-Illustration:On a little known YouTube channel, a breezy, British narrator is explaining the ins and outs of Doom: The Dark Ages ' story. Though not named, his voice may be familiar to video game fans as that of Mark Brown. The trouble is, Brown had nothing to do with the video.
Brown, who goes by Game Maker's Toolkit, is a content creator and developer who's covered video game design for over a decade. His channel has 220 videos, broadcast to over 1.65 million subscribers, where he gives in-depth explanations on things like puzzle mechanics in Blue Prince or addresses UI problems in The Legend of Zelda: Echoes of Wisdom . (Brown has also previously written for WIRED UK.)
The Doom video, posted to a channel called Game Offline Lore, is not Brown's typical content. But the problem is actually bigger than that: Brown never actually narrated this video. Instead, he says, the creator of Game Offline Lore has used an AI version of his voice without his knowledge or consent. 'The thought that someone else would do it in order to copy my persona in this way—it's just so weird and invasive,' he says. 'It's kinda like plagiarism, but more personal. It's not my work or my labor, it's a distinct part of who I am.'
AI-driven fraud is on the rise. Deepfakes, once confined to damaging videos affecting celebrities and average citizens alike, is now advanced enough to happen in real time. As AI seeps into every aspect of our lives, from work to emotional support, YouTubers like Brown are facing a growing problem: theft not just of their work, but of their very voices.
Brown filed a privacy complaint to YouTube, which typically gives the offender 48 hours to remove their video before YouTube officially gets involved. Typically, he says, YouTube 'has pretty robust systems' and tools to get these videos taken down. But Brown says it's been over 48 hours now since he reached out. Both videos remain live. Their creator, he says, has been removing comments where people say they've stolen Brown's voice.
YouTube spokesperson Jack Malon tells WIRED that it expanded its privacy request policy last year 'to allow users to request the removal of AI-generated or other synthetic or altered content that simulates their face or voice.' Malon says the company is reviewing the content to determine if a violation has been made. 'We'll take action if the content violates our policies,' he says.
WIRED was unable to find contact information for the person behind Game Offline Lore.
Brown tells WIRED that his videos are often the product of over 100 hours of work, researching material, writing scripts, recording gameplay, and editing. 'Each one is a significant project that takes two or three weeks to produce—with no shortcuts like using AI,' he says.
He says he learned about the Doom video after it was sent to him by someone who'd watched it; they thought it sounded like an AI version of his voice and wanted to alert him. A second video that appears to feature his voice is also online, this one about the series' lore. Brown was shocked. He knew such a thing was possible—Brown had made his own AI bot to replicate his voice for scratch vocals, before he replaces it with his final, recorded audio—but finding someone else had lifted his voice was unbelievable.
Game Offline Lore, the channel in question, is small, with only 7.43 thousand subscribers. Many of its 259 videos are shorts, and those with narration are clearly AI. But the full-length video featuring Brown's apparent AI-generated voice is more popular than many of the others, with over 60K views. Furthermore, Brown says, it's likely collecting 'a fair amount' of ad money.
As a content creator, Brown says he is used to his work being lifted in various ways. He's dealt with people streaming themselves watching his videos, or even flat out uploading his work to their channels.
He hasn't spoken to the person who runs Game Offline Lore. 'I do not believe anyone who would do this would be empathetic in the slightest,' he says. 'Much in the same way that it would be frustrating for someone to profit after plagiarizing your work, it's frustrating for someone to profit from using your persona.'
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Halting the barrage of bullets and missiles that is decimating Ukraine could draw on a wealth of scholarship and experience across Switzerland, Sticher says: 'Switzerland can play a role, there is Swiss expertise in both ceasefire mediation and ceasefire monitoring.' Any new ceasefire agreement, Dr. Sticher adds, must avoid repeating the mistakes of the earlier pact. 'The new ceasefire should be clear and strong in outlining strategies for dealing with violations,' she says. The truce should also 'explicitly provide for the incorporation of technology such as satellite imagery into a future ceasefire observation mission.' 'If the two sides reach an agreement on a ceasefire with a demilitarized zone, and agreement on what types of weapons can be in what proximity of this zone,' she says, 'then satellite imagery could be used to verify that the parties comply with this agreement.' In ceasefires of the future, Sticher adds, expanding use of satellite imagery 'can be an invaluable tool to support human monitors'—by helping document the ever-changing dangers of battle zones and by providing crystal-clear evidence of truce violations.
