Who are the main characters in 'Doctor Who Ghost in the Machine short story'?

It's a complex tale involving time travel, a mysterious ghostly presence, and a race against time to solve a technological mystery.

The story might be about the Doctor facing some kind of threat related to a 'ghost in the machine'. It could involve a computer or technological system that has an unexpected and perhaps malevolent presence within it, like a digital entity that is causing trouble or mystery.

I don't have enough information to determine the main characters. It could be a scientist who invents or studies the machine, a curious child who stumbles upon it, or a group of adventurers who are on a quest related to the machine.

The main character is the Time Traveller. He's the one who builds the time machine and goes on the journey through time. Then there are the Eloi and the Morlocks. The Eloi are the gentle, child - like beings in the future, and the Morlocks are the more menacing, subterranean creatures.

Kuno is one of the main characters. He is different from others as he has a sense of rebellion against the all - controlling machine.

There's also the emperor. He is a very important character as he represents the power and the establishment. His reaction to the flying machine is crucial in driving the story forward. When he sees the flying machine, he has to decide what to do about this new and potentially dangerous thing in his kingdom.

The main character is the inventor of the sound machine. There's also a doctor who the inventor tries to talk to about his discovery.

Since I'm not familiar with this particular graphic novel, it's hard to say for sure. However, in a story with such a title, we might expect a character who represents the human side of things, perhaps a scientist or an engineer. There could also be a character that embodies the 'ghost' in some way, whether it's an AI with a mind of its own or a strange, otherworldly being that has become part of the machine. And there might be a supporting character, like a friend or a mentor, who helps the main character in their quest to understand what's going on.

As we have no information about the story, the main characters could be various. They might be the inventors of the machine, so they could be smart and creative people. Or it could be the people who are affected by the machine, like workers in a factory where the machine is used.

I'm not entirely sure as I haven't read it recently, but usually there would be the scientists or military personnel involved with the machine.