An undercover assessor for Cavitex, posing as a patient, leads to Ben having to attend a retraining course, and to make matters worse, Roger is also attending.
| Name | Type | Role | |
|---|---|---|---|
| Ed Dyson | Writer | ||
| Amy Shindler | Writer | ||
| Robyn Taylor | Writer | ||
| Morgana Robinson | Guest Star | ||
| Rhodri Meilir | Guest Star | ||
| Michael Fenton Stevens | Guest Star | ||
| Ursula Burton | Guest Star | ||
| Nic Phillips | Director |