Narrator

The Narrator's personality was originally based on the character from the FUNimation dub, but has later evolved into an angry, depressed character forced into doing the narration.

History of Characterization
When RabidSonicFan originally wrote the scripts, he based it moreso on the FUNimation version of the show, where the Narrator was more sarcastic and snarky. When Mont wrote how Kululu tortured him in a closet full of rabid monkeys, the Narrator became more fearful of him and overall just more pessimistic. RabidSonicFan emphasized this further, with having the Narrator mentioning that he attempted suicide numerous times.

Relationships
Kululu - Due to Kululu being especially cruel to him, including repeatedly locking him in [rabid]monkey-filled closets, they have a mutual hatred of one another (though the Narrator also fears him greatly). In addition, once Kululu locks the Narrator in a closet or just plain traumatizes him, Kululu ends up taking over the narration.

Keroro - He's the only other character that the Narrator interacts with (albeit not very often), though Keroro's usually an asshole to him, just like with everyone else. He usually forces the Narrator into doing something, much to his aggravation.