My favorite Ned Romero performance was as Chief Joseph in the tv movie, I Will Fight No More Forever (1975). He's still around according to IMDB (about 87 now) and his last job was in 2006 it looks like. He began his entertainment career as an opera singer.
Trek God 1, it wasn't specified what Andrews' prior commitment was in the article.
I always loved IWFNMF. I saw it growing up first run in the 70s and he was great. He WAS great in it.
But he always played decent characters and perhaps he wasn't the best choice for a TOS Klingon, but it was a throwaway part.
Both Kras (Andrew's Klingon) and
Krell (Romero's klingon)--never had their name mentioned during their episodes.