Answer the following Q with stream of consciousness. Context: Sanaa Lathan voices Donna Tubbs, the wife of Cleveland, stepmother of Cleveland Brown Jr., and mother of Roberta and Rallo Tubbs. In developing the character, Lathan said that the producers "wanted her to be educated, but to have some edge." Prior to voicing Donna, Lathan had only one other voice credit in a relatively low-budget film entitled The Golden Blaze. In addition to the show, she also primarily worked as an actress in such films as Alien vs. Predator, Love & Basketball and The Family That Preys.

Question: who does the voice of donna on the cleveland show?
To answer the question, consider the following: Sanaa Lathan voices Donna Tubbs, the wife of Cleveland, stepmother of Cleveland Brown Jr., and mother of Roberta and Rallo Tubbs. Therefore, the final answer is Sanaa Lathan.