Voice acting is essential in a game to make characters sound believable and give them character. Good voice acting is just like a good movie, so it shouldn’t sound scripted or just plain terrible.

Red Dead Redemption

Red Dead may not have strange alien characters, but the voice acting is so authentic that you really get attached to these characters without awkward moments, or sometimes scripted sounded segments. The voice actors Rockstar chose really sound like these characters and put so much passion and effort into them that the whole game really just sounds like a movie.

Runner-Ups

Heavy Rain

Mafia II

Mass Effect 2

God of War III