Margot is given a scrapbook in which she uncovers a terrifying secret about the Biddle House.
| Name | Type | Role | |
|---|---|---|---|
| Mariko Tamaki | Writer | ||
| Rob Huebel | Guest Star | Colin Stokes | |
| Alex Felix | Guest Star | Young Sarah | |
| Ben Cockell | Guest Star | Harold Biddle | |
| William Chris Sumpter | Guest Star | Young Ben | |
| Terry O'Sullivan | Guest Star | Dowling | |
| Rhinnan Payne | Guest Star | Allison | |
| Taylar Hender | Guest Star | Young Nora | |
| Tate Chernen | Guest Star | Student | |
| Françoise Yip | Guest Star | Victoria | |
| Michelle Mao | Guest Star | Young Victoria | |
| Lexa Doig | Guest Star | Sarah | |
| Samantha Blaire Cutler | Guest Star | Young Eliza | |
| Steve Boyum | Director |