Eric Server

 played energy conservation author, Andrew Collins, in the Tabitha pilot episode (1977).

Biography
Eric Server was born on December 14, 1944, in Santa Monica, California. He is an American television actor, best known for providing the voice of computer brain Dr. Theopolis in the 1979 television series "Buck Rogers in the 25th Century". He is also known for Battlestar Galactica (1978), Simon & Simon (1981) and Switch (1975). He has been married to Colleen Server since April 11, 1986. They have two children.

 January 16, 2020