John Bishop, Robin Weigert, Jonathan Forbes and Wunmi Mosaku also Star in the new drama 

As filming begins on Mammoth Screen’s legal conspiracy thriller, Fearless, ITV has announced that BAFTA winner Sir Michael Gambon will star alongside acclaimed lead actress, Helen McCrory, in the six part drama. 

Actor and comedian John Bishop also joins the cast, along with Emmy nominee Robin Weigert (Jessica Jones), Jonathan Forbes (Catastrophe), Wunmi Mosaku (Dancing On The Edge) and Jamie Bamber (Marcella). 

The brand new 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.  

Other acting talent confimed for the drama 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). 

Written by Homeland writer and executive producer Patrick Harbinson, Fearless is produced by leading independent programme makers, Mammoth Screen, whose portfolio includes highly-successful new drama Victoria starring Jenna Coleman for ITV, popular crime series Endeavour also for ITV, the critically-praised mini series And Then There Were None and internationally renowned hit Poldark. 

Executive Producer and Mammoth Screen’s Managing Director, Damien Timmer said of the casting: "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." 

Fearless has been commissioned for ITV by Controller of Drama Victoria Fea, who says: “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.” 

Fearless will be produced by Adrian Sturges (Houdini and Doyle, The Enfield Haunting, The Disappearance of Alice Creed) and executive produced by Mammoth Screen’s Managing Director, Damien Timmer (Victoria, Poldark, And Then There Were None), Tom Mullens (Endeavour, Black Work) and Patrick Harbinson. Developed by Mammoth’s Creative Director Rebecca Keane, the series will be directed by BAFTA winner Pete Travis (The Go-Between, Legacy, Omagh). It will be distributed internationally by ITV Studios Global Entertainment.