Heather C. Thanatos (ヘザー.シ.タナトス Hezaa Shi Tanatosu?) is a rather infamous Pirate who originates from Karate Island and is the older sister of Nick C. Thanatos. A very powerful Swordswoman, she was recruited into the The Valkyrie Pirates for her skills. Her swordsmanship and indigo-tinted hair has given her the moniker, Indigo Edge (藍刃 Ranha?). Prior to naming herself Heather, her birth name was Joanne (ジョワン Jowan?).