| Canon source | Backstage source | Novel source | DITL speculation |
| # | Series | Season | Source | Comment |
| 1 | STP | 2 | Watcher | |
| 2 | STP | 2 | Two of One | |
| 3 | STP | 2 | Farewell |
| Series : | STP Season 2 |
| Episode : | Watcher |
| Series : | STP Season 2 |
| Episode : | Two of One |
| Series : | STP Season 2 |
| Episode : | Farewell |
| © Graham & Ian Kennedy | Page views : 2,781 | Last updated : 20 Jan 2023 |
