|Planet of origin||Planet Eternium|
|First appearance||"The Day the Earth Stood Stupid" (3ACV07)|
|Voiced by||Billy West|
Ken is one of the Nibblonian leaders who helped Philip J. Fry and Turanga Leela save the Earth from the Brain Spawn. Like most Nibblonians, he hates being called cute, despite enjoying to be stroked and playing with a toy mouse on a spring. Along with Nibbler, he does most of the explaining to Fry and Leela.
Fry: Aww, aren't you a fuzzy little guy.
Ken: Purr... Stop that!
Ken: When the universe was forged in the crucible of the Big Bang, our mighty race was already 17 years old.