Since I don't know the 'cecil original story' in detail, it's likely that the main character is Cecil himself.
I'm not sure specifically what the 'cecil original story' is as there could be many stories with that name. It could be about a character named Cecil, perhaps his adventures, relationships or some unique experiences.
Based on the title, it seems that Cecil and Jonah are likely to be the main characters.
The main character in the original marathon story was a Greek messenger.
The main character is probably Klaus. Given the name of the story, it's a safe bet that the story revolves around him. He could be a regular person in an extraordinary situation, or perhaps he has some unique qualities that the story focuses on.
The main character in the '127 Hours' original story is Aron Ralston.
I'm afraid I can't identify the main character in the 'ghazi original story' without more details. It could be that the main character is a Ghazi who has some special abilities or characteristics. He could be a leader, a seeker of truth, or a person with a unique mission. Maybe the story is told from his perspective, and his actions and decisions drive the plot forward, but this is all speculation without further knowledge of the story.
The main character in the original story of 'The Revenant' is Hugh Glass.
Since it's called the 'annie original story', the main character is likely Annie.
As we have limited information about the 'seraphina original story', we can only assume that if the story is named after a person, Seraphina would be the main focus. However, there could be other important characters as well that play significant roles in the story.
The main character in the Candyman original story is Daniel Robitaille.