Nana in Battlestar Galactica
Nana will be starring in season 4 of BSG - playing a character named Emily Kowlski !
She isn't listed for the ep in question, but is listed for ep 4x09, maybe Madame President will dream or have a vision of her.
I didn't realise it was her until the boat sequence at the end, a testiment of how good the illness make-up was in the infirmary