Mr. An Tenna. Hour TWWWWW!

When he “breaks down” or gets angry, errors, stripes of interference, and messages like “ERROR” appear on the screen - and this is not just an effect, but a reflection of his internal state.

Runners/temporary participants:

Lancer was involved in the show, helping out in small ways, but was not a full-fledged employee.
Various Dark Ones whom Tenna attracts as “on-air guests” or competition participants.
Rebels / Independents:

Spamton - openly challenges Tenna's ether.
Some viewers - there are hints in the lore that some of the audience is tired of the endless show and wants silence.

Relationship
Character Relationships
Chris, Susie, and Ralsei are the contestants on his show. Tenna treats them like the stars of the show: he admires them, but also exploits them. At some point, he becomes genuinely attached to their reactions and wants them to "stay on the air."
Lancer: Former employee/participant of the show. In Chapter 4, Lancer was Tenna's go-to guy for a while, helping with the organization, but quickly realized it wasn't his thing and left. Tenna isn't offended—for him, any departure is also a "plot twist."
Queen: A colleague in the media space, but with different approaches. Queen is "power and order," Tenna is "chaos and entertainment." They are not enemies, but not allies either: each is pulling the blanket over themselves.
Spamton is an antipode and a competitor. Spamton wants to "reboot" the system and steal the public's attention, while Tenna perceives this as a threat to her broadcast. Their relationship is a struggle for viewers.
Who is subordinate, who is nearby
Subordinates and assistants:

Extras and crowds are faceless figures in costumes who carry out Tenna's commands and create the atmosphere of the show.
Technicians and operators are small robots/creatures that control cameras, lights, screens and special effects.
Assistant screens are mini-displays that duplicate lines, show scores, tips, and advertisements.

Job title
The host and owner of an entertainment complex/show in the Cyberworld. He's effectively a media mogul and star, controlling the shows and broadcasts. His arena is a hybrid of theater, game show, and television studio, where he directs everything, including the characters' behavior.

character:
Character
Tenna is a showman to the core: hyperactive, loud, and adoring applause and audience reaction. He sincerely believes he's doing people a favor when he puts on a show, and believes that "entertainment is the most important thing." For him, every event is an excuse to turn it into a performance: he even presents drama as part of the program.

But he's not a pure villain: he's deeply vulnerable. Tenna is desperately afraid of being stopped watching, of becoming uninteresting, of the show ending. Because of this, he can be obsessive, manipulative, and even cruel—not out of malice, but because he's desperate to keep everyone's attention.

He has moments of sincerity: when he realizes he's gone too far, he can stop and even apologize. But almost immediately he tries to "get the show back on" again—because he doesn't know what to do without him.

Another trait is a love of games, contests, quizzes, rules, and rewards. He loves creating challenges and quickly changing the rules if things get boring.