Greta is one of the Mathletes, known for her unibrow which she has demonstrated the ability to wiggle. She is the current romantic interest for Holger. Her favourite beverage is pressed prune and clam juice. She was attacked by the Tazelwurm in Blitzkrieg Bop'd and Return Of The Ping.She and Holger have broken up, and Greta is currently dating Steve.
Holger has a few romantic rivals for Greta's effection, but they either had ulterior motives or were brainwashed by the Prank Song.
- Ed Mcfeeney
- Brad Von Chillstein
- She doesn't like Kimmie McAdams as seen in Corndog Day Afternoon.
- As of Date with Destiny apparently she and Holger have broken up.