Since debuting in 2015, the series — an 18th-century drama that revolves around Turner’s titular character — has been met with increasingly positive reviews and high ratings.
Based on Winston Graham’s novels, the third series is based on the fifth and sixth books in the Poldark series, The Black Moon and The Four Swans.
Already, a fourth season has been commissioned by the BBC, Turner previously saying production would start in September later this year.
Speaking to The Independent about the upcoming series, Eleanor Tomlinson said: “We've got lots of new cast this series. [Myself and Turner] are becoming the golden oldies now. It's a bit strange.”
Other actors returning for the series include Heida Reed as Elizabeth, Jack Farthing as George Warleggan, Ruby Bentall as Verity, and Luke Norris as Dr Dwight Enys. Josh Whitehouse, Harry Richardson, and Tom York join as new cast members.
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