New girl Rani is haunted by a sinister clown - could it be linked to the recent disappearances of several local children? When Clyde's friend also goes missing, Sarah Jane and the team are drawn towards a bizarre circus museum, and an old legend - has the Pied Piper come to Bannerman Road?
| Name | Type | Role | |
|---|---|---|---|
| Phil Ford | Writer | ||
| Elijah Baker | Guest Star | Steve Wallace | |
| Jem Brownlee | Guest Star | Dave Finn | |
| Ace Bhatti | Guest Star | Haresh Chandra | |
| Aaron Shosanya | Guest Star | Tony Warner | |
| Mina Anwar | Guest Star | Gita Chandra | |
| Bradley Walsh | Guest Star | Odd Bob / Elijah Spellman / The Pied Piper | |
| Alan Ruscoe | Guest Star | Clown | |
| Huw Higginson | Guest Star | Mr Cunningham | |
| Sean Palmer | Guest Star | Clown | |
| Michael Kerrigan | Director |