Who's Kayla Palmer she always talks to the ppl who star on degrassi TNG?

i don't wanna be stalker ish but im just wonder , was she like a previouse degrassi star ? i mean iv only ever watch season 10 and im in love withit.. but uhm just who is she ? she tweets like munro , luke and melinda and gets replies this is her twitter http://twitter.com/kkpalmer89