The storm-lashed planet Karn. Near a graveyard of crashed starships, the demented surgeon Solon hides in his castle, the last acolyte of the Time Lord despot Morbius. He only needs one final item to make his master live again... and then the Doctor and Sarah arrive...
| Name | Type | Role | |
|---|---|---|---|
| Robert Holmes | Writer | ||
| Terrance Dicks | Writer | ||
| Robin Bland | Writer | ||
| Janie Kells | Guest Star | ||
| Gilly Brown | Guest Star | ||
| Veronica Ridge | Guest Star | ||
| Sue Bishop | Guest Star | ||
| Colin Fay | Guest Star | ||
| Philip Madoc | Guest Star | ||
| Stuart Fell | Guest Star | ||
| Gabrielle Mowbray | Guest Star | ||
| Cynthia Grenville | Guest Star | ||
| Christopher Barry | Director |