Chief Constable of the Police Service of Northern Ireland - who's facing calls to resign over the policing of a republican funeral during the pandemic, sparking violent disorder and protests.

Simon Byrne, who's 57, is a policeman through and through. He joined the Metropolitan police as a teenager, straight out of school. Rising through the ranks, he took on senior roles in Merseyside, Manchester, London and Cheshire. He's now head of police in Northern Ireland, a post which many regard as the most difficult policing job in the UK, if not the world. Less than two years in post, and with the added challenges of Covid-19 and Brexit, Simon Byrne finds himself in a situation where policing and politics have collided.

Becky Milligan talks to friends and colleagues about the man with a reputation for getting things done, a love of steam trains and a commitment to public service.

Researcher: Stefania Okereke

The billionaire banker whose finance firm has collapsed and who is now at the centre of a lobbying scandal involving ex-Prime Minister, David Cameron.

Alexander "Lex" Greensill, grew up on his family’s sugar cane and melon farm in Queensland, Australia. After moving to the UK, he went into investment banking, founded a supply chain finance empire - complete with private jets - and, under David Cameron, secured a role in Britain’s Conservative-led Coalition government. After leaving office, the ex-PM became an adviser to the firm – Greensill Capital - which went bust last month, putting at risk 50,000 jobs worldwide.

Mark Coles charts the rise and fall of the farmer’s son who, so the story goes, began his finance company to help small firms get paid more quickly by big businesses.

Researchers: Matt Murphy and Stefania Okereke

Emerald Fennell is the first British woman to be nominated for an Academy Award for Best Director. The film, that she also wrote - 'Promising Young Woman' - has been called a 'revenge-comedy', a movie for the #MeToo era. Fennell's rise has been meteoric - showrunner for the second series of 'Killing Eve', she's also well-known for her roles in front of the camera, including her portrayal of the Duchess of Cornwall, Camilla Parker Bowles, in 'The Crown'. Becky Milligan tells the story of a prolific and multi-talented young woman.

Presenter: Becky Milligan

AstraZeneca's CEO faces scrutiny as his company's vaccine, and its roll out, comes under fire. Mark Coles explores the life and career one of big pharma's biggest names.

Journalist, controversialist, celebrity - Mark Coles explores the explosive career of Piers Morgan, one of the country's youngest-ever and best-known newspaper editors. In the spotlight, again, this time for storming off the set of ITV's "Good Morning Britain", colleagues, competitors, friends and foes detail a roller-coaster career. If it started with a desire to report from behind the headlines, as years passed he has all too frequently become their subject.

The attorney general of Minnesota is the lead prosecutor in the trial for murder of George Floyd who died in May last year. His death became front page news after a video showed a white police officer kneeling on his neck for nearly nine minutes. It sparked massive civil unrest and forced a wider debate about law enforcement and racial inequality. Keith Ellison's role in the trial which started this week will be closely watched. He was born in Detroit in 1963, one of five brothers to parents with high expectations and a strong sense of social justice. As a young law student he became involved in community activism, a path which led to his election to Congress in 2006, the first muslim to achieve that. Becky Milligan talks to his family and friends.

The former dentist who’s just become the new leader of Scottish Labour. Anas' childhood was infused with politics - his father became the UK's first muslim MP and his mother devoted a great deal of time to activism and campaigning. But that came at a cost. The family endured racist threats while he was growing up. Now a lot rests on his shoulders. With only nine weeks until the Holyrood elections, can he turn round the party's fortunes in Scotland and in so doing change the make-up of Westminster politics too? Mark Coles explores his life and career.

Carrie Symonds is Boris Johnson's fiancee and the mother of his baby.

She is a also a former special advisor, committed animal rights activist and Brexit supporter. And, not that long ago, she was director of communications for the Conservative Party.

It's that political experience that has fuelled questions about how much influence she has over decisions made in Downing Street. The Bow Group think tank this week called for an inquiry into her role.

Mark Coles profiles the woman who has been making waves, and headlines, in recent weeks.

Producer: Simon Maybin

Researcher: Maia Lowerson

Editor: Rosamund Jones

Studio manager: Graham Puddifoot

Production co-ordinator: Aretha Holmes

Dr Ngozi Okonjo-Iweala's journey to head the World Trade Organisation has been particularly note-worthy. She is the first woman and the first African to hold the position. A trained economist, she was at the World Bank during the financial crisis and, as Nigeria’s finance minister, she faced down corruption.

It's not just her career that sets her apart. As a child she lived through the Biafran War. Years later she faced another crisis: the kidnapping of her elderly mother. But her friends say she does find time for a laugh and the occasional boogie.

Becky Milligan hears about her fascinating life and career from close family, friends and colleagues.

Producer: Ben Crighton

David Martindale joined Livingston FC as a volunteer six years ago, picking up bibs and cones after training sessions. Now he is managing a team that's about to play in the Scottish League Cup Final.

It has been an unconventional and bumpy rise to the top. Martindale went to jail in 2006, doing time for his involvement in organised crime, Mark Coles talks to his family, friends and football colleagues about his past, his leadership style and what the future may hold. Will his chequered history thwart his ambition?

Producer: Beth Sagar-Fenton

Researcher: Maia Lowerson

Editor: Rosamund Jones

Production Co-ordinator: Janet Staples

Studio Manager: Rod Farquhar