BBC One's military drama Our Girl is undergoing a fairly major casting shake-up, Lacey Turner (Bedlam), who played lead character Molly Dawes in both the back-door pilot and the five episode first season, is exiting the series and Michelle Keegan (Ordinary Lies) has been set as the new lead for the recently ordered second season. 
Bill Paterson is returning to ITV. The former Law & Order: UK star has been tapped for a co-starring role in the channel's feature length Winston Churchill drama Churchill's Secret, which is a co-production with US public broadcaster PBS. He will play Charles Wilson, the 1st Baron Moran and Winston Churchill's personal physician who was instrumental in the Prime Ministers recovery. 
BBC One has released a trailer for their upcoming Emily Watson fronted 7/7 drama A Song For Jenny, which is set to air next month to mark the 10th anniversary of the terrorist attacks. 
Romola Garai (Legacy), Matthew McFayden (Ripper Street), Rachael Stirling (The Bletchley Circle), Daisy Lewis (Downton Abbey) and Tara Fitzgerald (Game Of Thrones) have signed on to co-star opposite Michael Gambon (Harry Potter) and Lindsay Duncan (The Honourable Woman) in ITV's feature length Winston Churchill drama Churchill's Secret. 
Netflix is turning to Arrested Development creator Mitch Hurwitz and comedian Mari Bamford for their next comedy entry. The streaming service has given the green-light to Lady Dynamite, a half-hour comedy from the duo which will also star Maria Bamford. 
Viacom International Media Networks UK is handing Comedy Central UK boss Jill Offman an expanded role. The exec, who is currently MD of the comedy channel, has been named Managing Director of both Comedy Central UK and MTV UK. 
Atlantis star Aiysha Hart has joined the cast of BBC Two's Line Of Duty in a guest starring role as Detective Sergeant Sam Railstone; while The Americans star Annet Mahendru has joined the cast of Fox's six episode X-Files Revival. Mahendru will play Sveta, a victim of alien abduction.