Mary Kathryn Nagle is a prominent attorney and playwright known for her work in advocating for Native American rights. She is a citizen of the Cherokee Nation and has focused her legal career on issues related to tribal sovereignty and the protection of Indigenous cultures. In addition to her legal work, Nagle is recognized for her plays that often explore themes of identity and history within Native American communities. Her notable works include Sovereignty and Sliver of a Full Moon, which highlight the struggles and resilience of Indigenous peoples in contemporary society.