|Location:||Church of the Ascension|
|Relationships:||Thomas Ritter, Jacob Ritter|
|Starting Firearm:||G26 Pistol|
|Starting Melee:||Cracked Pipe|
She is introduced in the mission ""The Voice on the Radio", after Marcus Campbell, Ed Jones, and Maya Torres return to the Ranger Station and find Thomas Ritter dead. An injured Ed takes Thomas' radio and receives a call from Lily looking for her father. Lily directs the three survivors to the Church of the Ascension in Spencer's Mill to get Ed medical attention.
It is discovered that Lily is diagnosed with a chronic ailment called Lupus early in the game. This condition requires medication that is quickly running out. Due to the shortening supply of medication, she will offer to sacrifice herself to allow the survivors to escape Trumbull Valley.
- Lily is responsible for writing some of the entries in the in-universe survivor journal "Day by Day".
- No one but Lily can operate the radio at the base.
- Lily cannot be killed.