Alright! I've been swinging my mind a bit on potentials, mostly surfing information (Because, really, of course I would be the one to forget key dates and information about my characters for a sliver of a moment. XD)
Old Tally Connections:
The first one that pops up is @Jonathan Azai, He was a Sturt (A couple of years ahead of Leanna) But he kept to the backscene of things, too much attention and notice hadn't been a thing he wanted or should've been bringing to himself considering circumstances. It wouldn't be any form of a secret that he'd been a Half-Fae either, the unique pattern of his eyes pretty much gives it away. While I wouldn't think they'd count as friends, I'd say acquaintance enough to be aware? He would've been considered a pretty stereotypical 'Silent Bad Boy' type, the reserved nature he had at that time being a pretty key identity point for him back in Tallygarunga. As well as someone who'd have been known to class with Purists from time to time given the Half-Breed portion, a commonality there I would imagine!
This way maybe a stretch? I dunno! But there is also the recently hired Elemental Magic Professor @Derrick Ackers He'd be in the same situation of a few years ahead but he also had been a Spencer, around the time Jezebel had been, known for hanging out with her from time to time. Most likely to be known and voted as, 'The guy who'd burn a building down.' with his fascination with fire and the various uses that he could slap to it. Equally known to be a bully ejector of sorts, setting their text books on fire or entire bags, he may not have attacked an actual student but having them fail in class due to lack of material is equally as bad! He'd have been one of the heavy pranksters in the Spencer House.
@Cole Lin Is potentially possible as well! She'd have been ahead of him by Four years, A Flinder's during his time and while he wasn't so much 'High Bubbly', There's an optimism towards things turning out alright with a bit of effort and hammering. He's the kind of guy to believe that kindness is an important way to show respect but also to show that a person is a person no matter what their state of existence, belief, or blood. While he is a Pureblood he doesn't believe in the purist regime, finding that it is a heavy extreme that paints everyone involved in a negative and horrid light. Depending on when she started VMU (If she just graduated within the last year.) Then they could've crossed paths there too, while he isn't taking a Magical Education degree, the focus of his degree would most likely intersect with a few classes.
Future Splotting Connections:
@Tyson McKennis Is probably the more likely start, A recent graduate from Tallygarunga who played Quidditich for Bourke House and the School time as a Chaser and part-timed other roles when necessary. The sense of dedication and need to establish himself as a commodity to survive has led to him constantly enhancing and improving his skill and usefulness of the field which had not only granted him a scholarship into VMU and other Universities but a few offers from International Teams. There hasn't yet been a decision on whether or not he'd take those offers and is trying to leverage each one bit by bit in his favor, to better his chances on being able to afford an actual roof over his head due to his home circumstances. While he currently attends VMU he's doing so under the degree of Law Enforcement, trying to keep his rear covered with a degree of some sort in case Quidditich doesn't pan out or the unspeakable occurs.
@Vale Windum This man is someone pretending to be a Human, he doesn't let on that he's an actual Fae nor that he's also a thief against the rich. What is known, however, is that he's recently stepped into Australia and has been investing in charities, benefits, and organizations that are aimed at assisting the oppressed or those without a home to call their own. Considering Leanna's own hand in starting up something along those lines, there is the potential recent offer of monetary assistance to help keep that kind of program running.
@Marcus Carsen He's a Journalist, One known well enough in the Melbourne circle since he produces his own Newsletter and hires various types of artists and freelancer's to fill it up as human interest pieces. Leanna's effort's for the Charity would be something that he'd want to place out a big informative piece on, something that he'd find shouldn't go unnoticed and the efforts of the few that sacrificed to make such a thing workout. A way to highlight not only the struggles and intentions but to also show others that things are being done and that it'd been an important component to the community and future productiveness to society as a whole.