Eli Vance is a character from the popular video game series Half-Life. He is a scientist and a key figure in the resistance against the oppressive Combine regime. Eli is known for his intelligence, resourcefulness, and strong sense of loyalty to his friends and family. In the game, Eli is the father of Alex Vance, another central character who assists players throughout their journey. He plays a crucial role in the storyline, providing guidance and support to the player as they navigate the challenges posed by the Combine and other threats in the game's universe.