@BlackMagic Hi! I'm back with another critique for you. Actually, two in one, since I'm going to do Jack and Timmy at the same time.
Jack:
Nature
Starting at mannerisms, you say he gesticulates a lot. What type of gestures? Does he wave his arms a lot? Or just his hands? Big arm movements, or subtle ones? Does his body language make up for his lack of expression? I really like his motivation. It seems like some solid character development happens in there, and that's important. Why does he want to help Timmy? I'm guessing it's explained in the story, but consider writing it down somewhere. His flaws are kinda bare. Expound a little. He's negative. So is he mean, dismissive, ungrateful, impatient? Does he lack empathy, or at least pretend to? Is he straightforward? Arrogant? Moving on, a prejudice against life itself? I like the pessimism. Everything else in this section is well done! Good job.
Social
Ooh, the religion section is so well thought-out! I am curious as to why he became an atheist. Was it because of the bad things happening in his life? What do you mean, "none" for politics? Even if there are no politics in the afterlife or wherever your story is placed, what about during his life? Did he care about current events at all? Did he like the government? I'm inclined to believe he didn't, since he struggled so much financially. I'd recommend filling out the politics, favorite weapon, favorite possession, and favorite animal section. They're more helpful than you'd think.
History
His backstory is so good! It's very sad but believably so. Well done! I feel so bad for him, especially since he ends up taking his own life. The backstory really adds much needed context to his personality, which is the mark of a good backstory.
Ohh, you explain why he is attached to Timmy in his notes! Okay, that's a good reason. I like that he's a father figure to Timmy, even though his own father passed away at an early age. Good job on that.
Timmy
Looks
What's his hairstyle like? All of his looks are a bit vague. Describe him more!
Nature
I like his mannerisms, although you could stand to add a few more. What does he do when he's laughing? Angry? Sad? His motivations are good. However, his flaws are extremely underdeveloped. Just because he's the protagonist, doesn't mean he has to be a flawless angel. Subconsciously offending people is not a flaw. Give him some genuinely negative traits. Does he get angry easily? Does he get anxious? Is he moody, overly emotional? Does he talk too much? Does he not talk enough? Flaws are the biggest key to humanizing your character and making him relatable. Everything else in this section seems good enough, although his personality type could stand to be developed a bit more by incorporating more realistic flaws.
Social
Quite a lot of "none"s in this section. No religion, no politics, no favorite possession? C'mon! These are universal things. Add more.
History
I hope you have a genuine, believable reason as to why Timmy is the only one who can have free will. Is he actually defective? Did someone tamper with him? How is he different from everyone else? Beyond that detail, the backstory is good!
Overall, I like these two characters! I especially love the father-son dynamic. Both of them could use some fleshing out, but they've definitely got solid potential. Good job and good luck.