Sarah, Damian's girlfriend Regina, is actress Zoe Saldana.. she has been in a few movies, Centerstage, Pirates of the Carribbean, Guess who?, etc..
I thought the episode was good too, I was half asleep while watching it, so I'll have to watch it again this weekend.
It's funny, while watching it, I can't help but keep thinking "How does this person connect with this person.. ?"
It's a fun little game I play.