Little Brother


  • Marcus Yallow – Main protagonist, a 17-year-old high school student who enjoys understanding technology and building his own custom devices. He is the leader of his foursome of friends.
  • Darryl Glover – Marcus' best friend who attends the same high school as Marcus and is Marcus' second-in-command and the "details man" of the group. He has had a crush on Van for years.
  • Vanessa Pak (Van) – 17-year-old North Korean girl who attends a nearby all-girls Catholic school, she is the "ideas" person of the group. She has had a thing for Marcus for a long time, but doesn't admit it until the end of the book. Her parents managed to escape from North Korea.
  • Jose Luis Torrez (Jolu) – A brilliant high school student at a nearby Catholic school, he is the technical member of the group. Even though everyone in the group is technically competent, he is the most technology-oriented, doing his own programming, and working for a local ISP. He is somewhat vain and seems to work at being cool.
  • Drew Yallow – Marcus' father who has a stormy relationship with Marcus through most of the book. He was so scared by the thought of Marcus having died during the bombing, because Marcus was missing for three days, that he supports the tactics DHS employs. This leads to many arguments with Marcus despite his former mindset that was similar to Marcus'.
  • Lillian Yallow – Marcus' mother, British expatriate, who helps newly immigrated Britons integrate into American life. She and Marcus have a strong bond and seem to think alike. She is a strong woman and helps mediate Marcus' fights with his father.
  • Charles Walker – Also a student at the same high school as Marcus and Darryl, he is the antithesis of Marcus. He is a bully, a brown noser and an informer for the authorities. He and Marcus have a long-standing feud and detest each other.
  • Carrie Johnstone – Main antagonist and in charge of the DHS that is monitoring San Francisco. She is a cold sadistic woman to whom the ends always justify the means and enjoys abusing her power. She is mainly known as "Severe Haircut Lady" throughout most of the novel.
  • Angela Carvelli (Ange) – She attends the same high school as Van and develops into Marcus' love interest, when she first meets him at a party. She is an active member of the Xnet and is very strong-willed, independent, and sexual. She's known to use pepper spray as a condiment.
  • Ms. Galvez – A social studies teacher at Cesar Chavez High School, she is seen as a dedicated teacher and an independent thinker. She seems to be the only teacher that Marcus respects at his school. She tends to agree with Marcus on topics of security and Marcus helps her with contacting her brother, who's an overseas soldier, via internet.[3]
  • Barbara Stratford – Investigative reporter for the Bay Guardian, who helps Marcus expose what the DHS has been doing.
  • Masha – A DHS operative who attempts to help Marcus escape the city. Marcus meets her briefly in the beginning of the novel when she threatens to expose him for skipping school while ARGing. He also meets up with Masha in the end in the midst of their escape, he finds a photo of his friend Darryl and his position on running away is changed. Therefore he escapes from Masha after beating her up and smashing her fingers in a truck.
  • Zeb – A former detainee of DHS's "Gitmo-by-the-Bay", he manages to escape and attempts to disappear after contacting Marcus about Darryl and the current status of the prison.

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