Keith Neudecker—the novel’s protagonist, Lianne’s husband.
Lianne Glenn—Keith’s wife.
Justin—Keith and Lianne’s son.
Nina Bartos—Lianne’s mother.
Martin Ridnour—Nina’s lover (also known as Ernst Hechinger).
Jack Glenn—Lianne's father.
Falling Man—an actor who jumped off buildings; his real name is David Janiak.
Isabel—the mother of Justin’s friends.
Bill Lawton—an imaginary terrorist whose name Justin and his friends make up, a mispronunciation of Bin Laden.
Florence Givens—a woman with whom Keith develops a relationship.
Carol Shoup—editor in a publishing house.
Rosellen S, Omar H, Carmen G, Benny T, Anna C, and Curtis B—Alzheimer’s patients under the care of Dr. Apter.
Dr. Apter—physician of the Alzheimer’s patients.
Elena—a woman who plays loud Middle Eastern music in Lianne’s apartment building.
Hammad—one of the terrorists.
Amir (Mohamed Mohamed el-Amir el-Sayed Atta)—one of the terrorists.
Dockery, Hovanis, Demetrius , Terry Cheng, and Rumsey—Keith’s poker friends.