Debbie Una, or just Debbie, is a human police officer in the Invader Zim universe. Her parents were murdered by super-human Don "Wick" Galleck, and she's the smartest agent in the police force.
At age 5, Debbie's parents were murdered by never-aging super-human Wick, who kidnapped them first. Every since, Debbie has been studying crime and became a police officer and a detective.
- She was diagnosed with Bipolar Disorder.
- She was originally going to be Rak's enemy, fighting him every chance she got.
- She is an emetophile.
- She is the smartest member of the Police Force.