After Amalia’s origin story is revealed, a long-awaited reunion crystallizes the Orphans’ mission.
| Name | Type | Role | |
|---|---|---|---|
| Jane Espenson | Writer | ||
| Ellora Torchia | Guest Star | Knitter | |
| Mark O'Sullivan | Guest Star | Orderly | |
| Ravi Aujla | Guest Star | Scientist | |
| Freya Parker | Guest Star | Doris | |
| Nicola Sloane | Guest Star | Mama True | |
| John Macmillan | Guest Star | Byner | |
| Abigail Thaw | Guest Star | Mrs Hundley | |
| Nelly Currant | Guest Star | Jenny | |
| Glen Davies | Guest Star | Dr Campbell | |
| Matthew Marsh | Guest Star | Major | |
| Stacha Hicks | Guest Star | Nurse #1 | |
| Lee Armstrong | Guest Star | Varnum | |
| Terence Frisch | Guest Star | Solicitor | |
| Nicholas Nunn | Guest Star | Boot | |
| Anna Munden | Guest Star | Nurse #2 | |
| Catherine Skinner | Guest Star | Gert | |
| Okezie Morro | Guest Star | Crescent | |
| Zee Asha | Guest Star | Matron | |
| Rita Bernard-Shaw | Guest Star | Second Boot | |
| Toby Mace | Guest Star | Predatory Man | |
| Daniel Hoffmann-Gill | Guest Star | Thomas True | |
| Zetna Fuentes | Director |