Cass, Yaxthlaahaat Daxthlawadi, is a member of the Eagle Clan and Killer Whale House, and has been on the School Board since 2002. Cass, who is both Tlingit and Greek, was born and raised in Sitka and attended the Sitka School District from kindergarten through graduation. She is the daughter of Pete and Bertha Karras, has five children (Cassie, Chloe, Cayla, Seth, and Cedar) and is married to Stewart Pook, who is the Director of the Bill Brady Healing Center.
A master bead artisan, Cass focuses on working in antique beaded jewelry. She is a member of Grace Harbor Church, and is the Tlingit and Haida delegate for Sitka. She is also Board President of the Friends of Shelden Jackson Museum.