Coun Walker-Gurley has been handed the cabinet post of member for economic development and asset management.
Selston councillor Dawn Justice has also been given a cabinet seat, getting the communities and public health brief.
And Nuthall & Kimberley councillor James Rawson has been named deputy to finance and resources cabinet post holder Coun Stuart Matthews.
A majority of decisions about council services are made by the cabinet, as well as the setting of a budget each year and the council’s policies.
Each member has a designated department, such as transport and environment, finance, social care, or education.
Meanwhile, Broxtowe councillor Dr John Doddy who represents Stapleford and Broxtowe Central, will become the deputy leader of the council.
He was expelled from the Conservatives after he stood independently against the party for the Broxtowe constituency in the 2024 General Election, before becoming the authority's first Reform councillor earlier this year.
Reform secured a sweeping victory, in the election on May 2, taking control of the authority from the Conservatives with a clear majority, securing an initial 40 out of 66 available seats.
This has since fallen to 39 after Desmond Clarke, who unseated Conservative Keith Girling in Newark West, resigned a week after the election.
A by-election will now take place for his seat.
The Mansfield North seats also remain vacant at the moment after the vote there was postponed due to the death of a candidate.
The new vote is expected to take place next month.
The Conservatives previously held the authority with 34 seats, but now sit as the main opposition with 17 councillors.
Coun Mick Barton, who represents Mansfield East, was named as the council's first ever Reform leader on May 12.