Who was Nikolai in the story in relation to the equalizer?

There's not enough information to say for sure. He could be the main character, but it's also possible that he's a secondary character who just has some connection to the equalizer. For example, he might be a helper to the real main character who is involved with the equalizer in a more central way.

The Equalizer is about a guy who uses his special skills and determination to help those in need and fight against injustice.

In the 'equalizer good man story', the main character is likely to be a man who is on a mission to create equality. He could be a former soldier or a law - enforcement officer who has seen too much inequality and has decided to do something about it. He has a set of skills, perhaps combat skills or knowledge of the law, that he uses to his advantage. He might be a loner, working outside the normal systems of justice because he believes they are too slow or corrupt. His character is defined by his goodness, which drives him to use his 'equalizing' abilities to help those who are being mistreated, whether it's the poor, the oppressed, or the victims of crime.

There's not enough detail to know for sure who the old man is. He could be a variety of things. He might be a war veteran who has some skills or knowledge that comes into play in the story. Or perhaps he's an old family friend of one of the characters, and his presence in the story is to provide a different perspective or a connection to a past event that is related to the events in 'Equalizer 2'.

The back story of The Equalizer often involves a character with a troubled past, perhaps involving injustice or trauma, that drives them to seek justice and balance in their own way.

Maybe the creator just focused on the present action and didn't think a back story was necessary.

Definitely not a true story. 'The Equalizer' is a work of imagination, crafted by the writers and filmmakers to entertain audiences with an action-packed narrative that doesn't draw from real events.

No, it isn't. The Equalizer is a fictional creation.

Yes, Niccoli was the boy from that story.

The Equalizer is not a comic book. It originated as a concept for film and television, and doesn't have a comic book counterpart. However, it might have inspired comic-like adaptations or related merchandise, but the core entity is not a comic book itself.