The Doctor and Ace visit the Psychic Circus on the planet Segonax, where they find the standard of judging at the talent contest distressingly astringent.
| Name | Type | Role | |
|---|---|---|---|
| Stephen Wyatt | Writer | ||
| Peggy Mount | Guest Star | ||
| Deborah Manship | Guest Star | ||
| Christopher Guard | Guest Star | ||
| Ian Reddington | Guest Star | ||
| Gian Sammarco | Guest Star | ||
| Jessica Martin | Guest Star | ||
| T.P. McKenna | Guest Star | ||
| Ricco Ross | Guest Star | ||
| Alan Rudolph | Guest Star | ||
| Daniel Peacock | Guest Star | ||
| Jim Lancaster | Guest Star | ||
| Alan Wareing | Director |