Can i use my gta v story mode character in gta online?

The provided source discusses the development and release dates of Grand Theft Auto V but does not mention any link between a story mode character and GTA Online. Because the evidence does not address character transfer or shared character use, we cannot confirm that such a feature exists. Players who want to use a specific character in GTA Online would need to refer to official Rockstar documentation or community guides that are not covered by the current evidence. Without additional sources, we must state that the question cannot be answered affirmatively or negatively based on the verified information.