| | | | Part 1 |
| 1 | Amy | Newling | Wavy's cousin. |
| | Wavonna | Quinn | Protagonist. Aka: Wavy, Vonnie. |
| | Liam | Quinn | Amy's uncle. Wavy's father. |
| | Valerie | Quinn | Amy's aunt. Wavy's mother. Aka: Val. |
| | Leslie | Newling | Amy's sister. |
| | Sue | Enaldo | The social worker who brings Wavy to Brenda. |
| | Brenda | Newling | Wavy's aunt. Amy's mother. |
| | Dust | Bunny | Wavy's baby doll. |
| | Bill | Newling | Brenda's husband. Wavy's uncle. |
| | Mrs. | NiBlack | Amy's neighbor. |
| | Helen | Morrison | Wavy's grandmother. Brenda's mother. |
| 2 | Irv | Morrison | Helen's husband. Brenda's father. |
| | Mrs. | Berry | Wavy's teacher. |
| | Donal | Quinn | Wavy's little brother. |
| 3 | Mr. | Arsenikos | Wavy's neighbor. |
| | Sean | Quinn | Wavy's uncle. Liam's brother. |
| | Megan | | The social worker who checks on Wavy. |
| | Dee | | Val's bestfriend. Liam's mistress. |
| | Butch | | Liam's friend. Liam's drug business partner. |
| 4 | Jesse Joe | Barfoot Jr. | A man who works with Liam. Wavy's boyfriend. Aka: Kellen, The Giant. |
| 5 | Dan | Cutcheon | Kellen's mechanic business partner. Aka: Old man Cutcheon. |
| 6 | Lisa | DeGrassi | Wavy's 3rd grade teacher. |
| | Stacy | | One of the 3rd grade teachers. |
| | Mrs. | Norton | The long-time teacher at Wavy's school. |
| | Mr. | Bunder | The P.E. teacher. |
| 7 | Marilyn | | A saleslady at a bike shop. |
| 9 | Ricki | | Liam's mistress. |
| 10 | Terry | | Liam's friend. |
| | Alicia | | Kellen's former lover. |
| 12 | Adina | Barfoot | Kellen's mother. |
| | Snake | Girl | Liam's friend. |
| | Neil | | Kellen's friend. |
| | Yvonne | | Neil's girlfriend. |
| | Sandy | | One of Liam's mistresses. |
| | | | Part 2 |
| | Jane | Newling | Amy's grandmother. Bill's mother. |
| 3 | Vic | | Liam's worker. |
| 4 | Caroline | Peters | Wavy's classmate. |
| 5 | Glen | | The bar owner. |
| 6 | Billy | | A drag racer. |
| | Leon | Vogel | The police officer who arrested Kellen. |
| 8 | Scott | | Butch's friend. |
| 9 | Lance | | Dee's boyfriend. |
| | | | Part 3 |
| 1 | Patty | Bruce | Val's night nurse. |
| | Casey | | Val's day nurse. |
| | Marjory | | Patty and Casey's supervisor. |
| 3 | Miss | Humphries | Owner of the store where Kellen bought Wavy's engagement ring. |
| | Clifford | | A cashier at Miss Humphries's jewelry store. |
| 4 | Roger | Betsworth | Cutcheon's worker. |
| | Paola | Cutcheon | Cutcheon's wife. |
| 6 | Jimmy | Didier | A boy who likes Wavy. Wavy's classmate. |
| | | | Part 4 |
| 1 | Jana | | Leslie's friend. |
| | Angela | | Jana's sister. |
| 3 | Delbert | | A policeman. |
| 6 | Lyle | Broadus | Kellen's lawyer. |
| | Grant | | The sheriff who interrogates Kellen. |
| 7 | Haskins | | A policeman. |
| | Cardoza | | The federal agent. |
| | Barfoot | Senior | Kellen's father. |
| 11 | Charlotte | | The youth pastor. |
| | Marcus | | A boy who had a crush on Amy. |
| | | | Part 5 |
| 1 | Renee | Dale | Wavy's roommate. |
| | Jill | Carmody | Renee's best friend. |
| 2 | Mrs. | Dale | Renee's mother. |
| | Mr. | Dale | Renee's father. |
| 4 | Beth | | Kellen's new friend. |
| 5 | Darrin | | The custodian at the hospital. Wavy's friend. |
| | Joshua | | Renee's classmate. |
| 12 | Mr. | Osher | The lawyer who oversaw Wavy's trust fund. |
| 13 | James | Teeter | Wavy's lawyer. |
| 14 | C.J | Maber | The judge in Wavy's case. |
| 20 | Brice | Standish | Leslie's husband. |
| 21 | Trisha | | Amy's girlfriend. |
