Since I don't know the exact story, I can't say for sure who the main characters are. But it could be the 'creep' as one of the main characters, and perhaps the people who are affected by this creepy person's actions.
There's no way to know without more information about the 'the creep behind the camera true story'. However, it's likely that the main character would be the person who is described as the 'creep'. There might also be other characters like the victims of this person's actions, or those who try to stop the creep. For instance, if it's a story about a stalker - like figure, the main character would be the stalker, and the people being stalked would be other important characters in the story.
I'm sorry, but I don't have enough details about this story to determine the main characters. It could be that the 'creep' is the central figure, and there could be co - workers or friends who gradually discover the creepy behavior. There may also be authorities or people who play a role in resolving the situation related to the 'creep' if the story has a resolution aspect to it.