| Maureen | Alvorson | housekeeper at The Institute; snitch of Mrs. Sigsby; helps Luke to escape |
| Orphan | Annie | (Annie Ledoux) a homeless woman; on good terms with Tim |
| John | Ashworth | sheriff of DuPray, hired Tim for night knocker job |
| Kalisha | Benson | (Sha, The Chicken Pox Chick) a girl at The Institute; strong TP; good friend of Luke |
| Richard | Bilson | citizen of DuPray; father of Bilson twin |
| Robert | Bilson | one of the Bilson twins; Age 12; wanted to run away with his brother from their parents |
| Roland | Bilson | one of the Bilson twins; Age 12; wanted to run away with his brother from their parents |
| Winona | Briggs | caretaker at The Institute |
| Joe | Brinks | caretaker at The Institute |
| Frieda | Brown | a girl at Back Half of The Institute; Age
14; revealed Avery; wanted to join The Institute staff |
| George | Burkett | part-time deputy in DuPray; his mother rents Tim an apartment |
| Phil | Chaffitz | (Phill the Pill) caretaker at The Institute |
| Fred | Clark | janitor in The Institute; found dead Maureen |
| Harry | Cross | (Harold) a boy at The Institute; very weak TK; friend of Wilcox twins; died of seizure |
| Jimmy | Cullum | a boy at Back Half of The Institute |
| Rosalind | Dawson | Mrs. Sigsby's assistant; Age 81. |
| Corbett | Denton | (Drummer) the barber of DuPray; suffers from depression; has guns in the house |
| Rolf | Destin | neighbor and best friend of Luke |
| Vic | Destin | Rolf's father; fan of trains |
| Avery | Dixon | (The Avester) a boy at The Institute; very
strong TP; Age 10; good friend of Luke |
| Absimil | Dobira | one of the two Somali brothers; runs 24-hour market at DuPray; got shot by robbers |
| Gutaale | Dobira | one of the two Somali brothers; runs 24-hour market at DuPray |
| Chef | Doug | chef at The Institute |
| Eileen | Ellis | mother of Luke Eliis; was murdered |
| Herbert | Ellis | father of Luke Eliis; was murdered |
| Luke | Ellis | (Lucas David Ellison) Age 12; exceptionally smart boy; has small power for telekinetic; was kidnapped by The Institute |
| James | Evans | (Dr. Evans) doctor at The Institute |
| Tag | Faraday | deputy of DuPray |
| Andy | Fellowes | computer tech at The Institute |
| Tony | Fizzale | one of the mean caretakers at The Institute; likes to torture children |
| Donna | Gibson | a girl at Back Half of The Institute |
| Ronnie | Gibson | deputy of DuPray |
| Katie | Givens | a girl at Back Half of The Institute |
| Addie | Goolsby | (Mrs. Goolsby) widow, citizen of DuPray |
| Josh | Gottfried | one of the Stackhouse's' subordinates; participated in capturing Luke operation in DuPray |
| Louis | Grant | one of the Stackhouse's' subordinates; participated in capturing Luke operation in DuPray |
| Alice | Green | one of the Stackhouse's' subordinates; participates at kidnaping operations |
| Chad | Greenlee | caretaker at The Institute |
| Jim | Greer | a guidance counselors at the Broderick School for Exceptional Children |
| Wendy | Gullickson | deputy of DuPray; bad with work on the field but good in the office; girlfriend of Tim |
| Everett | Hallas | (Heckle) caretaker at the Back Half of The Institute; slowly losing his mind |
| Dan | Hendricks | (Dr. Hendricks) doctor at The Institute; in charge of experiments on children |
| Gladys | Hickson | caretaker at The Institute; always has annoying fake smile; studied chemistry |
| Norbert | Hollister | motel owner on DuPray; snitch of The Institute |
| Jake | Howland | (Jake The Snake) caretaker at The Institute |
| George | Iles | a boy at The Institute; strong TK |
| Zeke | Ionidis | one of the mean caretakers at The Institute; likes to torture children |
| Joanne | James | (Jeckle) caretaker at the Back Half of The Institute; slowly losing her mind |
| Tim | Jamieson | night knocker at small town of DuPray; former police officer |
| Tom | Jones | one of the Stackhouse's' subordinates; participated in capturing Luke operation in DuPray |
| Marjorie | Kellerman | kind elderly librarian who gave Tim a ride to DuPray |
| Robin | Lecks | The Institute worker; participated in Luke's
kidnapping |
| Hal | Leonard | a boy at Back Half of The Institute |
| Pete | Littlejohn | a boy at Back Half of The Institute; TP |
| Frank | Potter | deputy of DuPray |
| Rafe | Pullman | security at The Institute |
| Corinne | Rawson | caretaker at the Back Half of The Institute |
| Aunt | Rhoda | Luke's aunt |
| Felicia | Richardson | (Dr. Richardson) doctor at The Institute |
| Michelle | Robertson | The Institute worker, former FBI; participated in Luke's
kidnapping |
| Doc | Roper | the doctor of DuPray |
| Julia | Sigsby | (Mrs. Sigsby) the head of The Institute |
| Helen | Simms | a girl at The Institute; TK; Age 14. |
| William | Smith | (The Lisping Man) anonymous man; boss of Mrs. Sigsby; knows information about The Institutes all over the world |
| Trevor | Stackhouse | second man after Mrs. Sigsby at The Institute; in charge of security and kidnapping operations |
| Iris | Stanhope | a girl at The Institute; TK |
| Brian | Stearns | bank manager, who saw how kids stole money from ATM |
| Jerry | Symonds | computer tech at The Institute |
| Sophie | Turner | caretaker at The Institute |
| John | Walsh | security at The Institute |
| Bobby | Washington | a boy at The Institute; strong TK |
| Stevie | Whipple | a boy at The Institute |
| Ed | Whitlock | former night knocker at DuPray |
| Bill | Wicklow | police officer of DuPray |
| Gerda | Wilcox | one of the Wilox twins; friend of Harry Cross |
| Greta | Wilcox | one of the Wilox twins; friend of Harry Cross; broke her neck and died |
| Nick | Wilholm | (Nicky, Nicholas) a rebellious boy at The
Institute; Age 6. |
| Denny | Williams | The Institute worker, former FBI; participated in Luke's
kidnapping |
| Brandon | | caretaker at The Institute |
| Carlos | | caretaker at The Institute |
| Connie | | janitor in The Institute |
| Dave | | caretaker at The Institute |
| Hadad | | caretaker at The Institute |
| Hector | | DuPray citizen; warehouse worker |
| Jack | | (Slap Jack) caretaker at The Institute |
| Jolene | | housekeeper at The Institute |
| Judy | | one of the two Mrs. Sigsby's daughters; has drug addiction |
| Len | | a girl at Back Half of The Institute |
| Mattie | | worker at Wilmington railway station; helped Luke on his escape from The Institute |
| Norma | | caretaker at The Institute |
| Priscilla | | caretaker at The Institute |