Marcus Lincoln is one of two school friends of the protagonist – Quentin. His friends call him Radar. He can be characterized as a walking encyclopedia and knows how to use various devices. His intelligence assisted greatly. He managed to grasp the meaning of clues left by Margo. He has a girlfriend, Angela. They are ready to move to the more serious stage of relations. However, he skips the date X to help Quentin to find Margo. The family of Marcus owns the biggest collection of dark-skinned Santas. He is the only dark-skinned character. Marcus has a compassionate and sensitive personality.
Marcus "Radar" Lincoln in the Essays