But look who else is in the cast list? Ex-Coronation Street star, Natalie Gumede who played troubled Kirsty Soames! Natalie did a bang up job on Corrie and I expect she will shine in Doctor Who.
Natalie herself tweeted "WELL excited to be part of THIS "
There's no word yet on the storyline or what Natalie's part will entail. We wait with bated breath! The episode will air on Christmas Day.
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