Robin Sachs has died at the age of 61, reports BBC News.
The British actor died last Friday, but news of his death was announced on his official website on Feb. 5:
"Please join us in raising a glass to Robin - goodbye, dear friend. Thank you for all the laughter and the cookies. We will miss you so very much."
Further details about the actor's death have yet to be revealed.
The actor (who was just four days shy of his 62nd birthday) is best known for playing villainous character Ethan Rayne on the hit series "Buffy The Vampire Slayer," but boasts a full resume and will also be remembered for his roles on "Babylon 5" and "Star Trek: Voyager."