The Eternal Mystery (webcast)

The Eternal Mystery was a Doctor Who mini-episode written by Pete McTighe, and released in 2022. A trailer for the Doctor Who: The Collection — Season 22 Blu-ray and interview clips with various actors who had appeared in Season 22 appeared as a kind of ad break. A sequel to Mindwarp, the webcast featured the return of Nicola Bryant to the part of Peri Brown on screen.

Summary
On Krontep, a guard Rex questions a hooded figure praying in front of a statue of Yrcanos, who reveals herself as the Warrior Queen, Peri Brown. She tells him why she disappeared and that she visits the temple once a year with the Sixth Doctor. Learning that Rex wants to explore the universe, she invites him on board the TARDIS.

Cast

 * Peri Brown - Nicola Bryant
 * Rex - Leo Flanagan

Uncredited

 * Voice of the Sixth Doctor/Trailer Voice Over - Colin Baker

Crew

 * Writer, Director and Editor - Pete McTighe
 * Visual Effects - Chris Thompson
 * Title Sequence - Sid Sutton and Rob Ritchie
 * Dubbing Mixer - Mark Ayres
 * Packaging Design - Lee Binding
 * Costume Designer - Marcia Stanton
 * Make-up Designer - Sarah Burrows
 * Property Master - Mark Barton Hill
 * Runner - Gemma Frost
 * Director of Photography - Matt Patrick
 * Sound - Pete Gill
 * DIT/Camera Assistant - James Dalby
 * Camera Assistant - Kara Giedvile
 * Executive Producers - Pete McTighe and Russell Minton
 * Thanks to Tessa Salt and Jeff Parker

Continuity

 * Peri's disappearance following Yrcanos's death is mentioned and she reveals to her subjects that she resumed travelling with the Doctor. (AUDIO: The Widow's Assassin)
 * Rex's stepfather not wanting Rex to travel is similar to Howard Foster not wanting Peri to go travelling. (TV: Planet of Fire)
 * Peri's robe bears a resemblance to that worn by Ranith during COMIC: The Age of Chaos.