| Trevor |
Abernathy | Claudia's classmate |
| Edward |
Borough | Also known as Ed |
| Arlene |
Brown | One of Claudia's classmates |
| High |
Bun | One of the Group Fives |
| Sister |
Burke | Nun at the local church |
| Mr. |
Chang | Chinese food spot owner |
| Monday |
Charles | Claudia's best friend; missing |
| August |
Charles | Monday's brother |
| Patti |
Charles | Monday's mother |
| April |
Charles | Monday's older sister |
| Tuesday |
Charles | Monday's sister |
| Thomas |
Charles | Also known as Tip; Monday's father |
| Susan |
Clark | School's registrar |
| Claudia |
Coleman | Narrator and protagonist; Monday's best friend |
| Chris |
Coleman | Claudia's father |
| Janet |
Coleman | Claudia's mother |
| Gerald |
Coleman | Claudia's father (duplicate listing from context) |
| Carl |
Daniels | One of Claudia's classmates |
| Mrs. |
Duncan | One of Michael's teachers |
| Pastor |
Duncan | The town's reverend |
| Megan |
Forte | Claudia's dance classmate |
| Ms. |
Forte | Nurse; Megan's mother |
| Shayla |
Green | Claudia's classmate |
| Short |
Hair | One of the Group Fives |
| Todd |
Harris | Man from DC Urban Development Coalition |
| Mr. |
Hill | Guidance counselor |
| Martin Luther |
King Jr. | Famous civil rights leader mentioned |
| Christine |
Madden | Reporter |
| Ms. |
Manis | Claudia's dance teacher |
| Jacob |
Miller | Monday's crush |
| Ms. |
Montgomery | One of Claudia's teachers |
| Ms. |
Moser | Nurse |
| Mr. |
Ode | Basketball coach |
| Ms. |
O'Donnell | Claudia's homeroom teacher |
| Ms. |
Orman | Former school nurse |
| Giselle |
Orman | Ms. Orman's daughter |
| Ms. |
Paul | Anacostia library librarian |
| Ms. |
Pearl | Janet's cook assistant |
| Ms. |
Roundtree | New owner of Monday's former house |
| Darrell |
Singleton | Biggest kid in the school |
| Ms. |
Swaby | Resident at Ed Borough's center |
| Michelle |
Valente | Claudia's 7th grade teacher |
| Ms. |
Walker | Tutor; Michael's grandmother |
| August |
Wilson | Famous playwright |
| Detective |
Woods | Lead detective on Monday's case |
| Ashley |
| Shayna's friend |
| Carl |
| Trevor's friend |
| Carson |
| The detective |
| Doris |
| Monday's aunt |
| Dre |
| The DJ |
| Kam |
| Michael's friend; Megan's boyfriend |
| Katherine |
| Also called Kit Kat; Claudia's dance classmate |
| Keith |
| April's boyfriend |
| Kim |
| One of Claudia's classmates. |
| Michael |
| Claudia's classmate since first grade |
| Paris |
| Shannon's friend |
| Pete |
| Claudia's uncle |
| Robby |
| Claudia's uncle |
| Shannon |
| One of the Group Fives |
| Shannon |
| Claudia's dance classmate |