^^Cast in seasons 1-6

Cast in Season 7:

My guess would be Dex is from some fan fiction site or one of the official books.

Hmmm. Then I guess she doesn't really belong in this gallery. I'm mostly a TNG guy and I don't remember her from that series. So, she's as much a mystery to me as to you.

Still would make a decent avatar, though...

DS9 is my favorite series- I've seen each episode at least three times.

The third one is Jadzia Dax, who was in it for the first 6 seasons. 

This is Ezri Dax, who was in it in season 7:

I think the other trill must be from another series.

Sisko, Dex, Dax, Odo, Odo, Quark, I believe. Dax was a Trill and had more than one host durng the series.

Who's the second one?