There's plenty of major differences that are obvious - not being a Popoto in real life, for example - as well a many nuances I could point out (hair and eye color, overall height, etc.). However, I'll throw together a vague list of similarities and differences across my three characters, of both actual and (possibly) humorous things.
Chachan~!
Similarities
We both...
- Want people to be happy and have fun.
- Worry a lot.
- Are very loyal.
- Love hugs!
- Like fizzy drinks and don't drink alcohol.
- Know how to fight a little, but nothing extraordinary!
- Have done quite a bit of traveling!
Differences
I'm not...
- Anywhere near as fit.
- As good at making friends and talking to people.
- As knowledgeable in metallurgy (i.e. next to none).
- Nearly as dim-witted (I feel like I am sometimes, though!)
- Anywhere near as adorable.
Gogon
Similarities
We both...
- Wear glasses.
- Are roughly in the same age range.
- Enjoy thinking tactically.
- Are awkward in social situations (though for differing reasons).
- Are good at math!
- Don't like not knowing stuff.
Differences
I'm not...
- Anywhere near as egotistical and self-centered.
- As mean to other people (I hope...
).
- As intelligent (as he's supposed to be, anyway).
- Good with history.
- Any sort of leadership material.
- All that fond of tea.
Judge
Similarities
We both...
- Dislike people who break the law (especially bad drivers, for me).
- Are often told we're being too loud when we don't think we are. :<
- Are more likely to be reactive than proactive.
Differences
I'm not...
- Of such a Black-and-White viewpoint on everything.
- Old.
- Strong or intimidating or have anywhere near his level of presence.
- Able to cook nor as critical of cooking.
- A drinker of alcohol.
- Able to ride a horse around with my arms crossed.
Chachan~!
Similarities
We both...
- Want people to be happy and have fun.
- Worry a lot.
- Are very loyal.
- Love hugs!
- Like fizzy drinks and don't drink alcohol.
- Know how to fight a little, but nothing extraordinary!
- Have done quite a bit of traveling!
Differences
I'm not...
- Anywhere near as fit.
- As good at making friends and talking to people.
- As knowledgeable in metallurgy (i.e. next to none).
- Nearly as dim-witted (I feel like I am sometimes, though!)
- Anywhere near as adorable.
Gogon
Similarities
We both...
- Wear glasses.
- Are roughly in the same age range.
- Enjoy thinking tactically.
- Are awkward in social situations (though for differing reasons).
- Are good at math!
- Don't like not knowing stuff.
Differences
I'm not...
- Anywhere near as egotistical and self-centered.
- As mean to other people (I hope...
).- As intelligent (as he's supposed to be, anyway).
- Good with history.
- Any sort of leadership material.
- All that fond of tea.
Judge
Similarities
We both...
- Dislike people who break the law (especially bad drivers, for me).
- Are often told we're being too loud when we don't think we are. :<
- Are more likely to be reactive than proactive.
Differences
I'm not...
- Of such a Black-and-White viewpoint on everything.
- Old.
- Strong or intimidating or have anywhere near his level of presence.
- Able to cook nor as critical of cooking.
- A drinker of alcohol.
- Able to ride a horse around with my arms crossed.
~