And look, I have a new character too!
Leto Atreides II (from Children of Dune) is 16 and twin brother of Ghanima Atreides, although she is from later in their timeline, and he doesn't know she is here yet. He is the son of Paul Muad'Dib Atreides and his concubine Chani, and has been sent to Fandom by his stepmother Irulan, who was once a student here.
Leto has the blue glowing eyes of the Fremen, which are quite noticeable. He is also Pre-Born; his mother consumed so much of the drug melange or spice during the pregnancy that Leto and his sister were born with the memories of all their ancestors. He does not talk about this, and has enough training to keep telepaths out of his mind, so it will not be obvious.
He also spends half of the miniseries shirtless, so that is certainly canon.
More info on Leto in canon
here.
Simon Tam (from Firefly/Serenity) arrived in Fandom a few months ago looking for his sister River, who never returned home after graduation. He found out that she had been kidnapped by Kerrigan and dragged off to Kerrigan's universe, and Simon has no idea how to find her. He has remained here, and now works in the clinic.
Simon is a doctor. He is very smart, he is nice and polite, he wears neat vests. He stays at the hotel, as Mary treats him a lot better than Loki.
More info on Simon in canon
here.
River Tam (from Firefly/Serenity) is no longer in Fandom. After two years at the school she graduated, planned to take down the Academy but was instead kidnapped by the zergified Sarah Kerrigan, whom she looked up to almost like a mother. Kerrigan took her to the StarCraft universe, where River was turned into a zerg/human hybrid, serving Kerrigan. Was this mean of me?
ETA: Perhaps I should mention something about myself. I'm Sanna, I live in Sweden, so I'm in a different timezone from most people here. And of course, should you want to talk to me for any reason, just send me an email or IM me.