|Dexter's Neighbor (10A)|
She lives on the floor below Dexter Morgan in Apartment 10A.
- "My Bad"
Debra, upset that Dexter didn't keep his appointment with the FBI, hurries home. She bursts through the door and sees 10A feeding Harrison. She twice asks 10A, "Who the fuck are you?" which clearly offends the woman. The woman explains that she's from downstairs and is watching Harrison. She asks Debra, "You're the sister, right? ...He said you would know what to do."
As the neighbor begins to leave, Debra orders her to stay, and walks into the bedroom to call Dexter. Unable to reach him, she leaves a message, calling the woman the "fucking cat lady."
- The character is referred to as "Large Woman" in the credits. 
- She is the only person that is ever shown living in Dexter's apartment complex, apart from Cassie Jollenston.