Lucy is the daughter of Jesse Custer and Tulip O'Hare. She works in bank running an asset management fund to advise small businesses on charitable givings, titling of assets, and income replacement strategies.
Sometime after her father passed away, Lucy met Cassidy at their graves. Lucy told Cassidy about the stories she heard and asked why he never visited. She then asked Cassidy where he'd head next and if she'd see her again. Cassidy told her he'd try somewhere new and hoped to one day see her again.
- Lucy working in a bank serves as irony, as her parents use to rob banks.