Stainless Blackwell is a character in the mobile game Arknights, serving as the leader of the engineering group known as the Rhine Lab’s Field Engineering Section. Known for his inventive mind and technical expertise, Stainless is responsible for developing and maintaining advanced machinery for the team. He is distinguished by his practical approach, resourcefulness, and steady leadership in challenging situations. Stainless plays a significant role in both the story and gameplay, providing support to his allies with his engineering prowess.