Burton "Gus" Guster is a
fictional character on the
USA Network television comedy
Psych played by American actor
Dulé Hill. He functions as the
straight man for
Shawn Spencer's antics, and provides sobering advice, steady support, and friendship. Over the course of the show, Gus evolves from nothing more than a conventional, uptight pharmaceutical representative to a strong support system through all
Shawn Spencer's crazy antics. He frequently tries to pass himself off as "fearless" although in reality the opposite is true, and often cries, sometimes due to "sympathy" and other times when Shawn is insensitive to his feelings. It is believed that Gus was named after a relative of
Steve Franks, the technical producer of the show, Burton Franks.