Known as "The Alpha," a nickname well-earned on the fighting game scene. Victor is the newcomer, putting all the veteran players in check. Outspoken and extremely dominant, Punk has no problem or issues with sending anyone packing and telling them why it happened afterwards.
While Ryu is the more serious and stoic of the two, Ken is the complete opposite - flamboyant, unorthodox and unpredictable. He is an alpha male with a giant ego and constantly reminds his opponents about his greatness. While he can be brash, egotistical, and arrogant at times, his heart is pure. He is generally kind, friendly, a good person, and very easygoing which led him into starting a family of his own. He never backs down from a fight no matter how difficult it looks.
Karin's laugh and mannerisms are derived from the unpleasant "ojou" stereotypes common in anime and manga as well as the "rich person"/"popular schoolgirl"/"spoiled brat" stereotypes of Western fiction; while she typically remains snobbish and haughty as per the standard, other aspects of her personality can vary wildly in other media. In Namco x Capcom, Karin is calmer, more level-headed and cynical, and serves as the voice of reason for the impulsive Sakura (though she still retains her trademark laugh and condescending comments during battle sequences).
Cammy is a strong, forceful, determined, and pertinacious young woman with a firm sense of justice, who is extremely polite, friendly, respectful, and enthusiastic towards those whom she knows and cares about including Delta Red, Chun-Li or Guile, but can be very brutal and sometimes condescending to those whom she dislikes such as M. Bison or Vega. She refuses to go down without a fight, using her extensive training from both Delta Red and Shadaloo to her advantage in defeating her enemies.