I'm not sure exactly, but I assume Robot Boy himself is a main character. There might also be an inventor who created him.
Robot Boy is likely the central figure. There could be a group of kids who befriend him, and together they form a kind of team. And there might be an antagonist, someone who is jealous of Robot Boy's abilities or has a different view on how robots should be used in society. There could also be a mentor figure for Robot Boy, someone who guides him in understanding his own identity and capabilities.
The main character is surely Robot Boy. There could be other characters like his human friends. They might play important roles in helping Robot Boy understand the human world better, or in assisting him during his adventures. Maybe there's a villain, perhaps a scientist who wants to use Robot Boy's powers for evil purposes.
Well, obviously Robot Boy and Robot Girl are the main characters. Robot Boy is often depicted as having great physical strength and a bit of a naïve charm. Robot Girl is usually more in - tune with emotions and has advanced problem - solving abilities.
As I don't know the exact 'the robot boy story', but likely the main character is the robot boy himself. There might also be a scientist who created him.
Obviously, the atomic robot is one of the main characters. There might be some scientists or engineers who created it.
Since it's about robots, the main characters are probably different types of robots. There might be a lead robot with unique abilities or a group of robots that work together. There could also be scientists or engineers who created the robots as important human characters in the story.
Elliot is probably a main character as he is in the original Mr. Robot series. Also, Mr. Robot himself might be a key character in the graphic novel. Darlene, who is Elliot's sister, could also be one of the main characters, given her importance in the overall story.
I'm not sure specifically as I haven't read it, but they could be the robot soldiers themselves, or perhaps the humans who design, control, or are affected by these robots.
Most likely Santa Boy would be one of the main characters. And probably Santa Claus himself might also be involved as a key character, given the Santa - related theme. There could also be elves or reindeer as supporting characters.
The main characters could be two robots. One is an old - fashioned robot, built with basic functions but a lot of wisdom. The other is a new - generation robot, full of advanced technology but lacking in emotional understanding. As they interact, the old - fashioned robot teaches the new - one about love, and they fall in love. There could also be a scientist character who is observing their relationship and trying to understand it from a scientific perspective.
Well, the two boys who meet are the main characters of course.
I think Robot Boy himself is one of the main characters. There might also be the scientist who created him.