Tommy Moretti is the father of the character the player controls. This is implied by Mickey, who at the beginning of the game, tells you he remembers your father Tommy. By this rule, the players surname is Moretti. (This names that whatever name you choose for your player will be ____ Moretti. Example: Reggie Moretti).His surname, Moretti kind of seems like the name of the protagonist of the video game grand theft auto:vice city. His name is Tommy Vercetti