Sophie Turner sounds completely different with London accent in first look trailer for ITV's Joan

ITV has shared a first look at its upcoming drama series, Joan , which is inspired by the autobiography of London jewel thief, Joan Hannington.

Sophie Turner leads the cast in the titular role – and she sounds so different in the official trailer. Watch it below.

The six-part series introduces viewers to Joan in her twenties, who is described as a "fiery and uncompromising" woman who is desperate to escape the unhealthy marriage to her husband, violent criminal Gary.

When Gary goes on the run, Joan seizes the chance to start a new life with her six-year-old daughter, Kelly.

The synopsis continues: "Delving deeper into the criminal underworld, Joan meets Boisie, an enigmatic antiques dealer whose allure introduces her to new levels of danger and passion.

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"Through sharp intelligence, irresistible charm, and a talent for impersonation, Joan's journey is a high-stakes game of survival and reinvention. Every heist and every stolen diamond is driven by her singular purpose: to create a secure future for her daughter."

The series boasts a star-studded cast, including Frank Dillane ( Renegade Nell ) as Boisie, Kirsty J. Curtis ( Harlots ) as Nancy, Joan's older sister and a salon worker, and Gershwyn Eustache Junior ( I May Destroy You, Top Boy ) as Albie, an old acquaintance of Boisie who has made a new life in Spain with his wife Val played by Laura Aikman ( Archie, Gavin & Stacey ).

Rounding out the main cast are Nick Blood ( Agents of S.H.I.E.L.D ), Jack Greenlees ( Strike, Harlots ), Alex Blake ( The Crown, Chernobyl ), Caroline Faber ( Grantchester, Berlin Station ) and Dorothy Atkinson ( The Gold, Stonehouse ).

The drama is penned by Mrs Wilson and The Essex Serpent writer Anna Symon, while Richard Laxton ( Rain Dogs and The Thief, His Wife and the Canoe ) is at the helm as director.

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Sophie previously said of the series: "I'm so excited to be bringing Joan Hannington's fascinating life story to screen in Joan. She is one of the most notorious figures in the criminal underworld of London , earning her the nickname 'The Godmother.'

"A woman who goes between her thriving and daring career as a jewel thief, all whilst trying to get her daughter back from social services, we see a mother in despair swept up in the exhilarating world of crime," added the actress.

Joan is coming soon to ITV1 and ITVX.