A couple of days ago I watched the movie "Heat (1995)" starring Robert De Niro and Al Pacino. It's a masterpiece...a masterpiece just like GTA V.
The first 20 minutes of the movie is about robbing a van and it instantly reminded me of GTA V Blitz Play mission. And then the entire movie reminded me of GTA V. Robert De Niro looked 90% like Michael, dressed like Michael, about as old as Michael, same hairstyle, and so on. So it's more than obvious (to me) that Rockstar was inspired by this movie when they created Michael. There was a guy that kinda reminded me of Lester as well except he didn't have any leg problems.
GTA V (trailer)
GTA V (Blitz Play)
Heat (see how the van was rammed by a truck just like in GTA V and also the robbers are wearing similar masks and carrying carbine rifles)
GTA V (Lester)
Heat (I think Lester was inspired by him)
So I think it's safe to say that GTA V's Michael (as well as Lester and maybe some other side characters) was inspired by this movie.
But what were the other 2 GTA V protagonists (Trevor and Franklin) inspired by? Any ideas? (Remember how GTA Vice City was inspired by Scarface ,etc)