There is lots of stuff Tyrone knows about the people around him, from various ways. First, and most obvious, he spent weeks to months with all of them, in cells, in close quarters. It is unlikely, nay, completely unthinkable, that we didn't chat and find out a fair amount about each other just to stave off depression and insanity. Tight-lipped around the guards and doctors I can understand; but not around people in the same boat.
We've been on the run for less than 24 hours, but a very action packed and stressful 24 hours. Even if he'd be thrust into the group with no knowledge of any of the people he's with, he'd have learned or surmised a great deal about them.
Aaron -- very exciteable, anxious, unsure and impressionable. He's naive to the extreme and panics easily. He has no comprehension why people are after him or why he was captured. He figures the kid needs three things; purpose, friends and school. Definitely from Canada, though he swore Canadians always said "Eh?"
Jaya -- fairly calm and competant with a nice butt. She is a person of questionable ethics. She took her sweet time deciding we should be helped, and during that time helped perform a pile of experiments, most of which were not pleasant, on us. She's likely trustworthy and loyal up to the point where her choices are us or herself. His talking to her is generally meant to annoy and harass her, as he's still coping with what she helped do to him. The only reason he hasn't dumped her on the side of the road is that she actually did help them escape.
Sarah -- serious, angry, nice b00bs. She is definately a cop, so blue her hair turned colour. Seriously, her semi-unreasonable anger at assaulting the police officer and her "communicating" what exactly to say and do to Miguel, along with her fondling of her shiny beretta's rather screams "POLICE!" Tyrone helped the police a lot in New York, and he recognizes a fellow New Yorker when he hears one. Undoubtedly, Sarah recognizes Tyrone as a do-gooder super hero from New York, so he feels safe harassing her more or less, but is uncomfortable with mental powers right now, as it reminds him of some of the experiments performed on him.
Miguel -- smooth, very... gang like for lack of a better term. Tyrone has dealt with people like Miguel constantly in the ghetto, and they are usually small time crooks. This doesn't bother him, especially given the situation. Most crooks, when given the choice, won't be crooks and Miguel doesn't sound like a bad guy in the least. Tyrone figures he'll get along great with Miguel if forced into running for the short or long term. That accent isn't American though; he must be Spanish or Mexican.
Max -- Max is paranoid and for good reason. Minotaur is a psychopath. Hearing the few bits and pieces of Max's story make him wonder how much different the two are, though Max is not violent. Minotaur leaves no room for wonder; he hates America, and probably 90% of the other people on the planet. Max says he's some sort of gypsy, so his accent must be Greek or Russian.
Kiro -- excitable, focussed, single-minded. He thinks he and his culture are superior in ethics, mannerisms, dress and food. Pretty much every way I suppose. He too seems overly agressive, like the Minotaur, but perhaps even more frightening since unlike Max, he doesn't have a second personality to blame. Definitely someone from an Eastern country.
Sam -- Mrow! Pfft! Hiss! Pfft! Purr! Tyrone thinks she's a cat who got mutated to be able to become human, not the other way around. Very odd creature.
That's just observations mind you. Like I said, unless we all sat completely silent for months (and like Tyrone would do that), we should know a goodly deal about each other more than our basic observations in 24 hours. I just wanted to point out that a lot of simple observations can come from just what we've done, and not saying something doesn't necessarily mean that someone doesn't know it.
Y'all can know whatever you like about Tyrone, from powers to background, with the exception that he would have been very vague about any involvement with Vanguard Secure Computing, other than his role in designing part of its renowned operating system, a company people know he worked for since he graduated. He's also famous, having been a recognizeable elite for 8 years (or a big portion of the 8 years since he got his powers), so feel free to comment on any of his publicised heroics (which for the most part are fighting low end elites and baseline crimes), and promoting stay in school programs, anti-gang programs and funding for underprivilidged camps and schooling.
And if I managed to realize what your character is like, more or less, you are doing a darn fine job of roleplaying him. Hopefully my observations hit pretty close on everyone without making anyone feel bad (cause I'm in a happy, fuzzy mood today).
