Need more cast names for this movie...

IMDB lists only six black actors in TARZAN'S FIGHT FOR LIFE, but there were a great many more black actors in speaking roles as the Africans in the film. The doctor's native assistant, whose name I believe was Balu, has a couple of very important scenes. I don't recognize the actor although I'm sure I've seen him in bit parts in other Hollywood movies of the era. He really should be listed. There are two women who take care of the young chief and each is a speaking part yet only one, the younger one, is listed on IMDB (Paulene Myers as Native Mother). The Old Mother in the scene is not listed. Also there's a young actor who plays the messenger sent by Old Mother (as she is called) to get Dr. Sturdy but is captured by Futa and Ramo before he can get there. He has at least three major scenes with lines in both English and whatever African dialect they were using, yet he's not listed either and he's very good.

Only two of the film's black actors get listed in the film's onscreen credits: James Edwards and Woody Strode. Four others are identified on IMDB: Roy Glenn, Paulene Myers, Nick Stewart, and Milton Wood.

Does anyone know how to identify the other black actors in this film?

Thanks.