Filming has begun on Fearless, ITV’s new drama series from Homeland executive producer and writer Patrick Harbinson.

The “visceral political thriller” is produced by Mammoth Screen, the makers of Endeavour, Poldark and Jenna Coleman’s Victoria series.

Fearless stars Helen McCrory (Peaky Blinders) as Emma Banville, a solicitor known for defending lost causes, alongside Sir Michael Gambon (Harry Potter), comedian John Bishop, Robin Weigert (Jessica Jones), Jonathan Forbes (Catastrophe), Wunmi Mosaku (Dancing On The Edge) and Jamie Bamber (Marcella).

Executive producer Damien Timmer commented: “Michael Gambon is a legend, one of the UK’s finest actors, and it’s a real thrill for us that he will be joining the brilliant Helen McCrory in Fearless. The range and depth of the cast that director Pete Travis has assembled is testament to Patrick Harbinson’s wonderful scripts, following Emma Banville as she risks everything in her quest for the truth.”

The series follows Emma Banville (McCrory), a solicitor known for defending lost causes, as she investigates the killing of a schoolgirl in East Anglia and tries to free the man she thinks was wrongly convicted of the girl’s murder. However, as she digs ever deeper into the case, she begins to sense powerful forces, in the police and the intelligence services at home and abroad, who want to stop her uncovering the truth.

The cast also includes Christine Bottomley (In The Club), Rebecca Callard (Ordinary Lies), Emma Hamilton (Mr Selfridge), Kika Markham (Secret State), Jack Shepherd (The Politician’s Husband), Sam Swainsbury (Mum) and Rick Warden (Happy Valley).

ITV by Controller of Drama Victoria Fea hinted: “Emma Banville is the kind of character who hates to back down. Against all the odds she’s driven by the unfolding mystery of that 2003 murder and whether the killer was unjustly convicted. Fearless is a complex, taut thriller and we’re delighted to be commissioning the series from Mammoth Screen.”

Are you looking forward to Fearless? Let us know below…