| | | | Part 1 |
| | Rose | | Little Dog's mother. Aka: Ma. |
| | Mrs. | Callahan | Little Dog's ESL teacher. |
| | Phuong | | Little Dog's cousin. |
| | Julie | | Dead horse of Rose's client. |
| | Grandma | Lan | Little Dog's grandmother. Aka: Seven. |
| | Little | Dog | Protagonist/narrator. |
| | Mai | | Rose's sister. Little Dog's aunt. |
| | Bowlcut | | The boy who bullied Little Dog. Aka: Kyle. |
| | Jowlboy | | The boy who bullied Little Dog. |
| | Paul | | Little Dog's grandfather. |
| | Junior | | Little Dog's friend. |
| | Earl Dennison | Woods | A lieutenant colonel in the United States. |
| | Kultida | Punsawad | A Thai native and secretary in the US Army office. Earl's wife. |
| | Eldrick Tont | Woods | Earl and Kultida's son. Aka: Tiger Woods. |
| | Vuong Dang | Phong | A Vietnamese colonel. Earl Woods's friend. Aka: Tiger Phong. |
| | Dionne | | Rose's Christian friend. |
| | Miguel | | Dionne's husband. |
| | Curtis | Lemay | Chief of Staff of the US Air
force. |
| | Roy | Bean | The Judge. |
| | Carl | | Mai's boyfriend. |
| | | | Part 2 |
| | Trevor | | Little Dog's friend. Buford's grandson. |
| | Victor | | Little Dog's cousin. |
| | Manny | | Little Dog's crew leader. |
| | Nico | | Little Dog's co-worker. |
| | Mr. Buford | | Little Dog's boss. |
| | Gramoz | | Little Dog's classmate. |
| | Sid | | Little Dog's friend. |
| | Mr. Carlton | | Little Dog's former neighbor. |
| | Nacho | | A boy who lost his right leg in the Gulf war. |
| | Ray | Allen | An NBA superstar. |
| | | | Part 3 |
| | Marsha | | Little Dog's neighbor. |
| | Kevin | | Marsha's son who died due to heroin. |
| | Houdini | | A magician. |
| | Bess | | Houdini's wife. |
| | Mr. | Zappadia | Little Dog's teacher. |
