A fellow who is always declaring he's no fool usually has his suspicions.

Character class continuation! This time we go to the sub protagonist. Now, this is not the sidekick we mentioned earlier, this character needs to have some form of bond to the main character. They need to somehow put the protagonist above themselves. Think of Harley Quinn and the Joker, although they are not the protagonists in any sense of the word. Yet it shows a lively, non stereotypical and in some ways ideal portrait of such a relationship. Sick in some ways sure, but it works in quite a few ways.

I want the sub protagonist to be less noisy and serious than most of his/her counterparts. They don't get along with others too well although they really try to pitch in whenever they can. They are hard workers, although like the sidekick, not too successful. It grants an element of comedic relief at times, but desperation is an emotion which really can be highlighted with this character. They can try to the point of desperation which they reveal their true intentions. Foolishly throwing themselves into action which is too dangerous for themselves.

I'd like to go with a female example this time.

Name - Nami Konikawa.

Class - Sub-protagonist.
Race - Human or at least humanish.
Traits - Knows her food, fast runner, energetic worker and easily annoyed/fooled.

Has grown up with the protagonist and has some bonding towards him. Nothing on the romantic scale, but considers him a brotherly figure. Ambitious, but has no real backing in the form of talents. She tends to do stuff without thinking it through. She is anything, but greedy. She does not like long term plans, her concept of scale is way simplified and she generally does not know how the world works. However, she cares deeply for her friends and especially for the main character whom she would die for. This would probably be her fate. She is not one for too long thoughts, but she will have one longer dialogue with the protagonist during all this were she questions just about everything. A heart-warming, kind and clumsy character that has no ill intentions.

This characters makes for a good filler for most of the movie, yet has her own highlight in her death, and I am not trying to develop a soap opera out of this, because the circumstances around her death shall be most complicated and will act as part of the highlight of the movie. Bottom line is that she is a very nice character, a nice person, yet has downturns that she herself knows of, but tries her best to work around.