Most likely Gordon Freeman. He has been the central figure in the Half - Life series so far.
It could also be a new character. Maybe someone who has been on the fringes of the story before but now steps into the spotlight. This new character could bring a fresh perspective to the Half - Life universe, perhaps being from a different part of the world that has been less affected by the Combine until now.
There's a chance it could be Alyx Vance. She was an important character in the previous games and could take on a more central role in the short story. Maybe she has to lead the resistance in Freeman's absence or something similar.
Perhaps the short story will be about the origin of some of the strange creatures in the Half - Life world. It could show how they were created, whether it was by some experiment gone wrong or if they are a natural part of the world that was just undiscovered before. And Freeman might get caught up in this discovery, having to deal with the implications of these origins while also trying to survive.
It could be an original character. For example, a young girl who discovers she is half - Grimm after an accident. She has to hide her true nature from others while trying to understand her powers.
The main character could be an office worker. At 12:02 pm, they might be taking a short break from their work. Maybe they overhear a conversation that makes them suspect some unethical behavior in the company. So they start to dig deeper, facing many obstacles along the way, such as colleagues who try to stop them and a lack of evidence. But they are determined to find the truth because of their sense of justice.
A businessperson could also be the main character. They are on a visit for work - related reasons, like meeting with clients or inspecting a new branch. And during this visit, they face various challenges and experiences that form the story.
It could be a young adult. Young adults often make great main characters as they are in a phase of life full of change and discovery, which can lead to many interesting plot developments.
The main character could be a young and ambitious journalist who is sent to Antarctica to report on the effects of climate change. She is full of energy and determination to expose the truth about what's happening to this frozen continent.
The main character could be a lonely old man. He uses the telephone as his only connection to the outside world. He might call his old friends, or wait for calls from his family members. His life revolves around the telephone and the conversations he has or hopes to have through it.
A mother could be the main character in such a story. She runs away from her over - demanding family to have some time for herself, to rediscover who she is outside of her family roles. She goes on a solo journey and has a series of self - reflective experiences.
Well, the main character in Half - Life 2 Original Story is undoubtedly Gordon Freeman. He's the key player in the fight against the Combine. Alyx Vance is a significant character too. She's not only a great help to Gordon but also has her own story arc. There are other characters like Eli Vance, Alyx's father, who is involved in the resistance efforts. Also, the Vortigaunts play an interesting role. They have a strange relationship with Gordon Freeman and are also part of the complex web of characters in this story.
In Half - Life 2 Original Story, the central character is Gordon Freeman, a scientist - turned - fighter. Alyx Vance is another key figure. She is smart and resourceful and plays a significant role in the resistance against the Combine. Then there are other members of the resistance who are also important in the overall story, like Barney Calhoun, who is an ally to Gordon.