I'll give you a question, please answer with step-by-step reasoning process.
In the fourth season of American television series, Lilly is amalgamated with April Chalmers in the novels into Lilly Chambler, a mother and a nurse who forms a relationship with The Governor, and plays the same role in killing The Governor. The character's fate is different. She is portrayed by Audrey Marie Anderson.\n\nAnswer this question based on the passage: who plays lily in walking dead season 4?

Audrey Marie Anderson
The important part for answering this question is: She is portrayed by Audrey Marie Anderson.

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Final answer: Audrey Marie Anderson