Name: Alicia Fullen
Age: Around 100, looks about 20.
Species: Siren.
Appearance: [url=http://img06.deviantart.net/a8dc/i/2014/179/5/b/siren_by_carolinegariba-d7ocmod.jpg]Here[/url]
Human Appearance: [url=http://pre07.deviantart.net/8db0/th/pre/f/2015/219/2/e/__render__love_live___ayase_eli_by_kaicchii-d94l28w.png]Here[/url]
Background: She grew up on the high seas with several siblings, all of whom were much more proficient with their powers to lure sailors into the jagged rocks which surrounded their home. They were loving towards Alicia, trying their best to coach her to be able to use her powers to her full potential but no matter how hard they tried - her voice just couldn't carry over the crashing waves, to the sailors who were sailing past. Due to this, she agreed with her sisters and mother that it would be best that she leave to find a place where she could hone her powers and be able to rejoin her family.
Any other information: Due to her nature as a Siren, Alicia has an innate hatred towards men although she tries her best not to show it due to the school rules.

Name: Jayden Jones
Age: Unknown, looks to be early-20s
Species: Dryder/Drider.
Appearance: [url=http://vignette3.wikia.nocookie.net/coc-revamp-mod/images/5/5b/1383006155.erinkitty_spidermorph.png/revision/latest?cb=20150821024010]Here[/url]
Human Appearance: Look above! Although he will be wearing clothes.
Background: Crash landing in a harsh environment on a place only known as "The Island" as a human, where fruits could change you into odd things, Jayden had the unfortunate luck to stumble upon a very vindictive Venus Flytrap woman (known as Venus) who decided that it would be amusing to shove the poor, confused male onto one of the many cacti - whereupon his shape, and even species, was permanently changed. Luckily after this change happened, Jayden managed to escape from the clutches of his captor and find a small group of other... inhabitants of the Island and settle in well despite all that had happened. It was only many, many years later that he found himself leaving behind his dear friends and rejoining the "real world" in the Academy, where he's continued living for three or so years.  
Any other information: He's a bit of a playboy, for all genders.