He appears in the episode entitled "Poison" as himself thanking members of the business community of Gaborone for their donations to the fictional orphanage portrayed in the series.
[7] He was made a deacon at Petertide 1984 (1 July) by Mark Santer, Bishop of Kensington (by letters dimissory from Leonard Mwenda, Bishop of Lusaka), at St Luke's, Chelsea, Greater London[8] and served briefly as curate of All Saints, Notting Hill.
He left the UK in 1985 to become Rector of Luanshya and Vocations Director for Central Zambia, and was ordained a priest that year.
Bishop Mwamba maintained excellent working relationships with all levels of government which he still holds to this day.
During this time he also acted as mediator for the province of Central Africa, focusing on conflict resolution.
He has cultivated strong working relations with international organizations, served on the UN Civil Society Advisory Committee and officiated at the Southern Africa Development Community Parliamentary Forum (2007).
Bishop Trevor Mwamba was responsible for the increase of the Diocese of Botswana's Real Estate portfolio significantly by purchase and development.
He drafted constitutions for the Botswana Council of Churches and Young Women’s Christian Fellowship.
Bishop Mwamba was the Head of Legal & Compliance, Corporate Affairs and Company Secretary for Standard Chartered Bank Botswana Limited.
He initiated and managed pro-active advisory service in regard to issues which could have a significant legal impact, to ensure compliance with regulatory framework at all times.
As Head of Corporate Affairs, he improved the image and reputation of the Bank nationally and internationally.
He coordinated relationship and initiatives with all stakeholders; government, regulators, investors, analysts, clients, customers, and local communities.
Bishop Mwamba was assistant Priest, Wolvecote, Oxford, UK Bishop Mwamba was assistant Chaplain of Keble College, Oxford, UK Bishop Mwamba was Provincial Secretary, Personal Assistant to the then Archbishop Khotso Makhulu, Diocesan Secretary Diocese of Botswana, Church of the Province of Central Africa (Concurrent roles) He was responsible for coordinating the work of dioceses within the Province.
He was also Personal Assistant and legal advisor to the then Archbishop of Central Africa, Dr. Khotso W. P. Makhulu.
Bishop Mwamba was the curate at All Saints, Notting Hill, London, UK Bishop Mwamba was legal researcher at the Ministry of Legal Affairs, Zambia Chaplain to the Mayor of the Borough of Barking and Dagenham 2019- Chairperson Barking and Dagenham Faith Forum: 2018 - 2019 Chairperson Barking and Ilford United Charities: 2013 - 2019 Trustee - St. Augustine Foundation: 2014 - Trustee - Nepton Charity: 2013-2019 New Bishops in the Anglican Communion Course Canterbury Cathedral: 2014- Member – The Queen Elizabeth 11 Diamond Jubilee Trust Botswana Task Force.