Rusty Cartwright aka "Spitter" is the lead male protagonist of the series. He is the younger brother of Casey Cartwright. After being accepted into Cyprus-Rhodes University, Rusty decides that he no longer wants to be the stereotypical geek and wants to have fun. He decides to join Kappa Tau Gamma and becomes the little brother of Cappie. By the end of series, he becomes the president of his fraternity and the boyfriend of Ashleigh Howard.