The Other One is a comedy series created and directed by Holly Walsh (creator of The Other One series one, Motherland), who also co-writes and executive produces the series with Pippa Brown (The Other One series one, Psychobitches). It follows two sisters named Catherine Walcott who had no idea the other existed until their father died.
With Cathy Walcott (Ellie White) and her sister Cat Walcott (Lauren Socha) suffering from the discovery that they have a brother named Callum, Series 2 sees more Walcotts emerge from the shadows (Christopher Jeffers). And that Cathy "got off" with him.
Meanwhile, Tess (Rebecca Front) and Marilyn (Siobhan Finneran) find themselves babysitting Callum's mum Angela (Michele Austin) when she's thrown out of her house by her shocked husband. Marilyn is suspicious of the new arrival, but Tess is too busy making extravagant plans for spending her inheritance to care.
Elsewhere, guest star Caroline Quentin returns as over-the-top Auntie Dawn, and Cathy's ex-fiance Marcus (Amit Shah) is continuing to loiter.
A comedy about what happens when you discover your dead dad has a secret family, The Other One is a love letter to siblings, mothers and crap dads.