Andrea is one of the original survivors from the camp at the outskirts of Atlanta and one of the first ones to truly adapt to the new post-apocalyptic world. From a grieving sister who had lost her only family, she evolves into a resilient and determined survivor and undergoes significant development, showcasing her adaptability and leadership qualities. She's a skilled and independent survivor who plays a crucial role in Rick's group, struggling against both the undead and human threats. 