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The Other One. Image shows from L to R: Tess (Rebecca Front), Cathy (Ellie White), Cat (Lauren Socha), Marilyn (Siobhan Finneran).

The Other One (2017)

BBC One and BBC Two sitcom about two sisters who had no idea the other existed. 7 episodes (pilot + 1 series), 2017 - 2020. Stars Ellie White, Lauren Socha, Rebecca Front, Siobhan Finneran and Amit Shah.

Trailer

Comedy about a girl called Catherine Walcott. And another girl called Catherine Walcott. Sisters who had no idea the other existed until their father dropped dead. Cathy has a fiance, a Duke of Edinburgh Award and a pension. Cat has a pay-as-you-go phone. The only things they have in common are their names (a smart move if you have got a secret daughter). Both of them have always wanted a sister - just maybe not each other.

From Series 1. Featuring: Ellie White (Cathy), Lauren Socha (Cat), Rebecca Front (Tess), Siobhan Finneran (Marilyn).