Belfast woman Suzanne Wylie has been Chief Executive of the city council since July 2014.
A former pupil at Richmond Lodge School, Ms Wylie graduated from the University of Ulster in 1988 with a degree in Environmental Health.
She also later completed a Master of Business Administration at Queen's University in Belfast in 2004.
Having been with the council for almost three decades, Ms Wylie was head of urban development before she become Director of Health and Environmental Services in May 2010.
Following her appointment as chief executive, it emerged the council spent £2,365 on a new ceremonial robe for her because the old robe was too big.
During her time at the helm, she has been responsible for a budget in the hundreds of millions of pounds and has overseen the delivery of services to more than 330,000 residents within Northern Ireland's largest local authority.
She has also led range of initiatives to help propel Belfast into a major European force and has been responsible for negotiating an £850 million city deal with the UK government for the city.
In 2016, Ms Wylie won the Outstanding Business Woman of the Year crown at the Northern Ireland Women in Business Awards.
She has also had to deal with controversy surrounding the actions of the council.
In 2017, it was announced she would lead an investigation into the council's storage of loyalist bonfire pallets.
It came after the Irish News revealed the council had stored about 2,500 pallets for an east Belfast bonfire site which previously led to families being forced from their homes, and around 300 for a pyre near a city centre hotel.
At the time when asked whether Ms Wylie was aware of pallets being stored, the council said it could not comment.
A keen cyclist, Ms Wylie cycles to work every day.
In 2017, DUP councillor Graham Craig found himself at the centre of sexism row after he made comments about enjoying the sight of Ms Wylie on a bicycle.
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Formerly the most senior police officer in Belfast, Nigel Grimshaw is no stranger to the spotlight.
Having graduated from the the University of Ulster in 1998 with an honours degree in Public Policy and Management, he later completed a Post-Grad Diploma in Applied Criminology and Police Management at Cambridge University.
Between 2007 and 2009, he was the PSNI Deputy District Commander for North and West Belfast before he spent a six month period as Deputy Head of Criminal Justice Department.
He then rose through the policing ranks eventually becoming Chief Superintendent and then District Commander of the Belfast City District Command Unit.
When he retired from the PSNI in December 2015, he was the most senior police officer in Belfast.
During his time in the police, he dealt with a heightened threat from dissident republicans and significant public order concerns arising from parades and protests.
He was also the a Bronze Commander for the G8 Summit in Enniskillen in 2013 and was a Strategic and Tactical Firearms Commander.
During his time in the police, he was also involved in the implementation of the Patten reforms, and was the author of the 'Working in Partnership' document, one of a trilogy of publications focused on driving forward the ethos of Policing with the Community within PSNI.
In May, 2015, the then Chief Supt Grimshaw hit back at a Sinn Féin allegationsthat the arrest of Gerry Adams in relation to the murder of Jean McConville had been driven by dark forces in the PSNI.
In January 2016, Mr Grimshaw revealed he had undertaken a new post with Belfast city council as the Strategic Director of City & Neighbourhood Services.