AI on tiktok

So recently i came across an ‘actress’ on my fyp. I was curious on which shows the was in, and the comments kept mentioning the girl is ‘Brooke Sullivan’. I looked it up, no actress called that exists, no imdb page as well, absolutely no info or shows come up. Then i found out this whole page is an AI character and it has millions of likes so it got ppl thinking its a real person. Thing is it looked so real i thought that girl was real for weeks until i did some digging. Kinda creeped me out idk…