| Sue | Ann | Apple Pi sorority member |
| Jean | Balke | Photographer, former player |
| Jenny | Barns | With Levertov |
| Harry | Beltik | Kentucky state champion |
| Mrs. | Blocker | Representative of the Christian Crusade |
| Mr. | Booth | Escort for trip to Russia |
| Vaslily | Borgov | World champion |
| Mr. | Bradley | Bookstore merchant |
| Michael | Chennault | Lawer for Allston Wheatley |
| | Cooke | Beth's second opponent (1500 rating) |
| Manuel | Cordoba | Mrs. Wheatley's Mexican boyfriend |
| | Cullen | Beltik's opponent |
| Helen | Deardorff | Severe head of orphanage |
| Jolene | DeWitt | Worldly wise black orphan who befriends Beth |
| Miss | Dodge | Representative of the Christian Crusade |
| | Duhamel | Russian player |
| Mr. | Espero | English teacher at orphanage |
| Miss | Farley | Social worker |
| Mr. | Fergussen | Kind orphanage worker, dispenses pills |
| | Flento | Russian player |
| | Foster | Beat Beth |
| Mr. | Ganz | High school teacher, chess club coach |
| Georgi | Girev | Young Russian player |
| | Gladys | Another orphan |
| | Goldmann |
Another tournament opponent |
| Miss | Hadley | Science teacher at orphanage |
| Beth | Harmon | Orphan who discovers chess |
| | Hellstrom | Russian player |
| | Kaplan | Beth's third opponent (1694 rating) |
| | Klein | (1794 rating) |
| | Laev | Russian player |
| Arthur | Levertov | Grandmaster pick up game |
| Charles | Levy | One of opponent at HS chess club |
| Miss | Lonsdale | Chapel leader |
| | Luchenko | Russian player |
| Mrs. | MacArthur | Jr. High math teacher |
| Octavio | Marenco | International grandmaster |
| | O'Malley | State Dept. for possible funding |
| Reti | Opening | Dutch opponent |
| Annette | Packer | First tournament opponent |
| Phillip | Resnais | Middle aged grandmaster |
| | Rudolph | A master |
| Mr. | Schell | Teacher at orphanage |
| Mr. | Shaibel | Janitor who teaches Beth chess moves |
| Hilda | Shaibel | The janitor's sister |
| | Sizmore | Prior state champion |
| | Solomon | Another tournament victim |
| Ed | Spencer | Chess journalist |
| | Townes | (1724 rating) |
| Crawford | Walker | Christian Crusade director |
| Benny | Watts | International grandmaster |
| Hilton | Wexler | With Levertov |
| Alma | Wheatley | Adopts Beth |
| Alsoton | Wheatley | Beth's adoptive father |
| Barbara | | Pot smoker |
| Diedrich | | Australian player |
| Eileen | | Pot smoker |
| Margaret | | Apple Pi sorority member |
| Shirly | | From the HS chess club |
| Tim | | Beth's first |