A serious safety incident involving popular voice actress Sumire Uesaka has been reported, after her agency received multiple emails containing specific threats against her life.
Uesaka’s agency, Voice Kit, announced on September 14 that it had received several extremely malicious emails threatening to cause harm to the voice actress. The agency immediately treated the matter as serious and contacted the police, filing a report and requesting an investigation.
The agency has now revealed more details about the threats, while also asking fans not to spread speculation or attempt to identify the people or accounts involved.
According to Voice Kit’s latest announcement, the threats included statements claiming that Uesaka would be kidnapped and killed by multiple people by September 27. The messages also reportedly contained claims that the sender knew her current address and suggested kidnapping her near her home.
Because of the specific and serious nature of these threats, Uesaka’s agency is prioritizing her safety over her scheduled activities.
Sumire Uesaka’s Upcoming Appearances Are Being Reviewed
Voice Kit stated that it is currently discussing Uesaka’s scheduled appearances through September 27 with event organizers and other relevant parties.
The agency said that it is carefully considering whether she should participate in upcoming events and stage performances, taking into account the specific content and potential danger of the threats:

If there are any changes to her scheduled appearances, the agency will make another announcement.
Reports surrounding the incident have also stated that Uesaka’s appearances connected to the Kyoto International Manga & Anime Fair 2026 have been affected, including scheduled panels related to upcoming anime projects. However, Voice Kit’s official statement specifically says that appearances through September 27 are currently being reviewed for safety.
This means fans should wait for official announcements regarding individual events rather than relying on posts circulating online.
Police Are Investigating The Threats
Voice Kit had already contacted the police after receiving the initial series of threatening emails.
The agency said it is taking the situation extremely seriously and has requested an investigation while prioritizing the safety of Uesaka and everyone involved with her activities.
In its latest announcement, Voice Kit also asked fans and other members of the public to avoid spreading speculation about the incident.
The agency specifically requested that people not attempt to identify the individuals or accounts involved, or spread information related to them.
This is particularly important in a case involving threats against a real person, as unverified information circulating online could interfere with the investigation or put additional people at risk.
Sumire Uesaka Is Known For Several Major Anime Roles
Sumire Uesaka is one of the most recognizable voice actresses in the anime industry and has played numerous popular characters over the years.
Some of her notable roles include Nagatoro from Don’t Toy with Me, Miss Nagatoro, Alya from Alya Sometimes Hides Her Feelings in Russian, Shalltear Bloodfallen from Overlord, Lum from Urusei Yatsura, Sanae Dekomori from Love, Chunibyo & Other Delusions!, Anastasia from The Idolmaster Cinderella Girls, and Kawagami Mai from Myriad Colors Phantom World.
She is also scheduled to participate in events connected to upcoming anime projects, making the current situation particularly significant for fans following her work.
One of the affected appearances reportedly involved a presentation for the second season of Alya Sometimes Hides Her Feelings in Russian, also known as Roshidere.
Voice Kit Asks Fans To Prioritize Safety
Voice Kit concluded its statement by acknowledging the concern of Uesaka’s fans and people involved with her professional activities.
The agency said it understands that the situation may cause concern, but asked everyone to understand that ensuring safety is the top priority while the situation is being handled.
The agency is continuing to work with the police, event organizers, and relevant parties to determine how Uesaka’s upcoming activities should proceed.
For now, fans are being asked to rely on official announcements rather than unverified information circulating online.
The incident once again highlights the serious consequences that online harassment and threats can have when they move beyond the internet and become threats to a person’s physical safety.
More updates regarding Sumire Uesaka’s upcoming appearances are expected if any changes are made to her schedule. Bookmark Otaku Mantra for more anime news and updates!
About Sumire Uesaka
Sumire Uesaka is a Japanese voice actress and singer represented by Voice Kit. She has worked extensively across anime, video games, radio, music, and other entertainment projects.
Uesaka is particularly known for voicing characters across a wide range of anime genres. Her notable roles include Nagatoro in Don’t Toy with Me, Miss Nagatoro, Alya in Alya Sometimes Hides Her Feelings in Russian, Shalltear Bloodfallen in Overlord, Lum in Urusei Yatsura, Sanae Dekomori in Love, Chunibyo & Other Delusions!, Anastasia in The Idolmaster Cinderella Girls, and Mai Kawakami in Myriad Colors Phantom World.
She has also performed theme songs and character songs for several anime projects throughout her career.
In September 2026, Uesaka’s agency announced that it had received multiple threatening emails targeting the voice actress. The agency reported the matter to the police and began reviewing her upcoming public appearances with safety as the highest priority.
Source: Oricon