The feature-length special, titled A Knight's Tale, centres around a medieval weekend at a remote stately home and the comedy of errors that follows once the event begins.
It's not just old characters who appear in the story - current Weatherfield regulars Rosie Webster (Helen Flanagan), Jason Grimshaw (Ryan Thomas), Norris Cole (Malcolm Hebden) and Mary Taylor (Patti Clare) also feature.
Additionally, former Holby City and Dancing On Ice star Jeremy Edwards is playing a plastic surgeon named Uri.
Click 'play' on the console below to see a clip of the cast doing a read-through:
Coronation Street: A Knight's Tale will be available on DVD and to download from November 1.
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