So that was
William B. Davis?
I barely recognized him.
Also...I spotted two nuBSG Alumni. The old woman at Adamas home was played by the actress who played Lily, one of Baltars followers in "Faith".
The woman who stood at Greystones side during the demonmstration of the Cebturion prototype, also played a Quorum member in season 4. I believe she was the Tauron representative.