Freddie is a sociology professor at the University of California who specializes in the study of class and labor. He lives a conservative, restrained life north of the Slot in San Francisco. Seeking experiential knowledge for his academic writing, he ventures into the industrial district to observe workers firsthand. He approaches manual labor with theoretical capitalism in mind, initially viewing the factory hands as lazy when they fail to match his frantic production pace.

Bill is the large and physically imposing alter ego created by Freddie Drummond. He works as a manual laborer in the factories south of the Slot. Unlike his academic creator, Bill embraces physical exertion and forms genuine connections with the local community. He quickly discovers a natural aptitude for the working-class lifestyle and becomes an active participant in the union.

Mary is the president of the glovemaker's union and a dedicated advocate for the working-class residents south of the Slot. She is fiercely independent and politically active in local labor practices. She demonstrates her intense commitment to the community by physically confronting workers who refuse to identify their union status.

Catherine is a wealthy woman from an established aristocratic family located north of the Slot. Her father chairs the philosophy department at Freddie's college, making her an advantageous connection for his career advancement. She maintains a cold, reserved demeanor that perfectly mirrors Freddie's own emotional restraint.