Are michael franklin and trevor available in gta online?

Grand Theft Auto Online is a separate multiplayer mode of Grand Theft Auto V that allows players to create a customisable silent protagonist. The online game does not contain the single‑player protagonists Michael, Franklin, or Trevor as playable characters. The only way to experience those characters is by playing the single‑player story mode of Grand Theft Auto V. Therefore, within the online component, Michael Franklin and Trevor are not accessible.