Alas, I can't find many details online regarding the death of Charlbi Dean (aka Charlbi Dean Kreik or Kriek, I've now seen it spelled both ways). I saw the announcement of her passing, and it cited an unexpected illness the lady had been battling as of late; but those are all of the particulars out at this time. I did see one or two outlets stating that she died from injuries resulting from an automobile accident; this may be misinformation (she was involved in an accident a few years back) or it could be the truth. I just don't know.
What makes this even more sad is that I'm reading that her true 'break-out' performance is in the forthcoming comedy Triangle Of Sadness, which looks to poke fun at the lives of celebrities. I do recall her from a guest stint aboard The CW's Black Lightning where she played the villainous 'Syonide' across several episodes. IMDB.com reports that she also had a small role aboard the SciFi-lite property Death Race: Inferno (2013) for Universal Pictures.
Thoughts and prayers are extended to the family, friends, and fans of Ms. Dean.