C. Martin Croker

Clay Martin Croker (January 10, 1962 – September 17, 2016), generally credited as C. Martin Croker, was an American animator and voice actor. He was best known for having provided the voices of Dr. Weird, Zorak, and Moltar on the animated series Space Ghost Coast to Coast, replacing Don Messick and Ted Cassidy respectively, who originally voiced the characters in the 1960s series Space Ghost.