Can i customize my character in gta v story mode?

The only evidence available is a Wikipedia article that details the development team and release dates of Grand Theft Auto V. This article focuses on the game's production and does not discuss gameplay features such as character customization. Because the source does not address whether players can modify their character in story mode, we cannot confirm or deny the possibility based on the provided evidence. Without additional reliable references that specifically cover character customization in the game, it is not possible to answer the question definitively.