Hey! All of mine are completely okay with canon puncturing and most know they're from some sort of fiction anyway, although some are going to be more confused by the concept than others! I find it fun for character development so don't have any worries about me :>
I have:
Loki - this journal! I just introed him which you might have seen so I won't waste your time doing that again.
Newt Scamander - magizoology - Harry Potter spinoff dude from Fantastic Beasts and Where to Find Them. He's an incredibly awkward and protective of his animals. I'm also bad at character summaries.
Rose Tyler dieinbattle - The Doctor's first companion from nu!Who. She'll probably find her really interesting!
Tony Stark coconutmetal - I feel like most people have a vague idea of who Tony is, but he's an inventor and he's also Iron Man. Puts his foot in his mouth a lot but he's overall a decent guy, just makes a lot of mistakes that are very public due to his nature.
Han Solo dice = From a glance at her journal, I don't know if they'd hate each other or love each other. Star Wars, the guy who shot first.
Harry Potter tellslies -I...he's Harry Potter. He's doing his best.
Wanderer ridesthebeast - Probably my least well known! She's from The Host, a Stephenie Meyer book that I promise had a really cool premise. She's an alien living in a body she essentially took over, even though this body happens to have nobody left in it. She's probably the most sensitive to puncturing type stuff but again, it's totally cool.
Jim Kirk nowinscenario - You mentioned his ship and he'll be happysad to be reminded he doesn't have her anymore, but he's still Jim Kirk and he's still a badass.