Which of these is NOT a playable character in "Left 4 Dead"?

Nick is not a playable character in Left 4 Dead. He is a main character in the game's sequel, Left 4 Dead 2, which features four new survivors. In Left 4 Dead, the playable characters are Bill, Francis, Louis, and Zoey. Despite being a popular character, Nick is not available as a playable survivor in the original Left 4 Dead game.