Brock Peters

Brock Peters (1927-2005) played the voice of Dark Kat, bringing the villain to life and aiding to his personality with his deep, strong voice.  He has voice work in many other cartoons and has acted in movies, television and radio.

Links with information on Brock Peters:

Star Wars Actors Database (S.W.A.D.)
Internet Movie Database (IMDb)
Wikipedia Article