| A | B |
|---|
| Boggart | a spirit that likes to play tricks on people |
| MacDevon | Scottish man who owned Castle Keep, he died at 100 years of age |
| Fergus | MacDevon's dog |
| Mrs. Cameron | Scottish lady who owns the general store |
| Tommy | Mrs. Cameron's son who knows about the Boggart |
| Robert Volnik | dad, runs the theater |
| Maggie Volnik | mom, owns the antique store |
| Jessup Volnik | son and brother, loves the computer and is part of the Gang of Five |
| Emily Volnik | daughter and sister, thinks that some unusual events are happening in her home |
| Polydore (Polly) | cat belonging to the Volnik family, it knows about the Boggart and is scared of it |
| Aunt Jen | family friend that works with Maggie Volnik |
| Gang of Five | Jessup's friends who are part of his computer club |
| William Walker | actor at the theater; he knows all about Boggarts |
| Louise Spring | general manager of the theater |
| Dai | man who creates the costumes at the theater |
