It looks like Dollhouse is becoming a who's-who of BSG and Whedonites. So Dollhouse already features Eliza Dushku and Felicia Day from Buffy, Amy Acker from Angel, Alan Tudyk from Firefly, and Tahmoh Penikett from BSG. Now they'll be adding Summer Glau from Firefly, Michael Hogan (Saul Tigh) from BSG, and Alexis Denisof from Buffy and Angel.
This certainly isn't a bad thing, it's just constantly funny to me how actors turn up together in the same shows all time.