An experimental X-series robot was given emotions as an experiment and therefore was the only one of it's kind to survive intact. It retired after taking a shine to sweet thing Lulu, but Aku forces it to take on one more job: hunt down Samurai Jack. Written by
The TV Archaeologist
Did You Know?
This is the only Samurai Jack episode to have exactly one speaking part which is X9. See more
Seems like Aku got himself a little problem... a problem that won't go away... a samurai problem. I wanted nothing to do with it but that funny scientist informed Aku of my emotions. They got Lulu... sweet thing. I have no choice. Damn feelings. I came out of retirement.
References Blade Runner