Erwin Smith is a determined and charismatic leader in the anime and manga series Attack on Titan. As the Commander of the Survey Corps, Erwin is known for his tactical mind, resourcefulness, and willingness to make difficult decisions to protect humanity from the titans. He is often seen with a calm demeanor but harbors a passionate fire within that drives him to seek the truth behind the titans and fight for humanity's survival. His relationships with his fellow soldiers, including Captain Levi and the late Commander Keith Shadis, reflect his dedication to his cause and his ability to inspire others to follow him into battle. He also carries a deep sense of guilt for the sacrifices made under his command, which adds complexity to his character.