|Portrayed by||Dianna Agron|
|First appearance||Four Months Later...|
|Home||Costa Verde, CA|
Debbie picks on Martha in gym class, and Claire stands up for her. Debbie challenges her to do a cheerleading stunt well within Claire's ability, but Claire does not do it because she is trying to stay out of the spotlight.
In the parking lot outside CVHS, Debbie and another cheerleader, Carole, are looking for a new girl for the squad. Debbie spots Claire and makes her stand back-to-back with Carole. When the bell rings, the girls run off to class.
Debbie is running a tryout session for new cheerleaders. Claire and two others try out but Debbie rejects them.
While watching her smear a cupcake on someone else's face, West and Claire plan a prank on her. During a nighttime cheerleading practice, a drunk Debbie writes the measurements of overweight (by her standards) girls on their foreheads. Claire talks to her alone, trying to get another chance at the cheerleading squad, but a masked flying man grabs her and drops her from a high altitude, appearing to kill her. Debbie calls the police but Claire has disappeared. However, the policemen do find the bottle of alcohol she was drinking. She is suspended from the cheerleading squad.
Bob claims to be investigating the incident with Debbie.
- For other uses of Debbie, see Debbie (disambig).