Chief Marilyn Slett is a citizen of the Heiltsuk Nation and the elected chief councillor of the Heiltsuk Tribal Council. She is currently serving her third consecutive term as chief councillor, beginning in 2008 and following previous positions as tribal councillor and executive director of the Heiltsuk Tribal Council.
She is also currently the president of Coastal First Nations, on the board of directors of the British Columbia Assembly of First Nations, the co-chair of the Wild Salmon Advisory Council to British Columbia, and she has served as the B.C. women's representative on the Assembly of First Nations Women's Council.