What are the fighters available in the SF4 video game

The fighters available in Street Fighter 4 are the following, listed in no specific order: Abel, Crimson Viper, Rufus, El Fuerte, Seth, Gouken, Ryu, Ken, Chun-Li, E. Honda, Blanka, Zangief, Guile, Dhalsim, Balrog, Vega, Sagat, M. Bison and Akuma.