There have been many talented and accomplished Black actors throughout history who have left a lasting impact on the entertainment industry. Some notable Best Actor winners in Black history include:

1. Sidney Poitier - In 1964, Sidney Poitier made history as the first Black actor to win an Academy Award for Best Actor for his role in "Lilies of the Field." He was a trailblazer for Black actors in Hollywood and went on to have a successful career in film, receiving numerous accolades for his work.

2. Denzel Washington - Denzel Washington is a two-time Academy Award winner for Best Actor, first winning for his role in "Glory" in 1989 and then for "Training Day" in 2001. He is considered one of the greatest actors of his generation and has starred in a wide range of iconic films.

3. Forest Whitaker - Forest Whitaker won the Academy Award for Best Actor for his portrayal of Ugandan dictator Idi Amin in the film "The Last King of Scotland" in 2006. He is known for his versatility as an actor and has appeared in a variety of critically acclaimed movies.

4. Jamie Foxx - Jamie Foxx won the Academy Award for Best Actor for his role as Ray Charles in the biopic "Ray" in 2004. Foxx's performance was widely praised, and he showcased his talent as both an actor and a musician in the film.

These are just a few examples of the talented Black actors who have been recognized for their exceptional performances in film. Their contributions to the industry have helped pave the way for future generations of Black actors and have enriched the world of cinema.