Zremmlins were the dominant species of the United 'Zees Universe for about three centuries. From the Zremmlin Dress Code Law, passed a few months after Zortran took over, made all Zremmlins dress similar to Zortran. Zremmlins went extinct after a teenage Zeegee was struggling to get control over his newly obtained Zeegee Virus, accidentally turning all the Zremmlin population into disfigured teenage Zeegee Clones. Zeegee's former best friend, Zammy (now Zkelemar) was also a Zremmlin before his mutation.
- Fremmlins begin to grow moustaches at only 5 years old.
- Every Fremmlin has blue eyes.