Andrew Jessopp, Chairman of Braddan Parish Commissioners, and Falk Horning, who won the 2016 by-election for Douglas's Murrays Ward with 226 votes.

In November 2021 deputy leader Lamara Craine received 406 votes in the Ramsey North Ward by-election to become the party's 5th local authority member.

[24] He returned to the island "recognising the opportunity and the need for a movement for change around sustainable issues"[25] and therefore set about founding the Isle of Man Green Party.

[27] Mr Langan-Newton identifies himself as being in the left of centre on the political spectrum and considers climate change, green energy and affordable housing to be some of his most important priorities.

[28] Lamara Craine, Green Party Deputy Leader and (since November 2021) Ramsey Commissioner, is a local activist and community participant who organised several protests relating to climate change[29][30] and environmental destruction[31] on the Isle of Man.

The most recent protest that Lamara Craine organised regarding the elm tree tunnel at St Mark's was attended by over 250 people and successfully halted the planned works.

[37] On Thursday 17 June 19th 2021, Mr Jessopp attended the opening ceremony of construction works to begin building a new local authority community facility at Strang Corner Field in Braddan which will be used as a sports hall, child nursery, and commissioners offices.

He stated in an interview with Manx Radio that he believes that the young people of the island have more power than they realise and hopes that they will vote in all forthcoming elections.

[43] Councillor Falk Horning has worked on behalf of Douglas Council to launch a Keep Britain Tidy campaign, 'Love Where You Live' in which involve volunteer groups, schools and local businesses would take part in community led schemes.

[50] Andrew Bentley, an architect by trade[51][52] and member of the steering group of the Isle of Man Climate Change Coalition,[53][54] supported the Manx Blind Welfare Society during Vision Awareness Week 2019 with its campaign to introduce large print and braille menus at restaurants around Douglas town centre.

[58] Andrew Bentley and fellow party member and Douglas Councillor, Falk Horning, took action when public outcries were heard regarding the unclean condition of footbridge lamps.