Food for thought to agree with or not:
Magical negro - Wikipedia, the free encyclopedia
Examples of magical negroes as published by social commentators include:
Uncle Remus (James Baskett) in the film Song of the South (1946) 
Noah Cullen (Sidney Poitier) in the film The Defiant Ones (1958)
The magical negro is a recurring archetype Stephen King's novels as well as some adaptations of his work:
Dick Hallorann in The Shining (1977), and in both the 1980 film adaptation (Scatman Crothers) and the 1997 TV miniseries (Melvin Van Peebles)
Mother Abagail in The Stand (1978), and the 1994 TV adaptation (Ruby Dee)
John Coffey in The Green Mile (1996), and the 1999 film adaptation (Michael Clarke Duncan)
Moses the Clock Man (Bill Cobbs) in the film The Hudsucker Proxy (1994) 
Cash (Don Cheadle) in the film The Family Man (2000)
Bagger Vance (Will Smith) in the film The Legend of Bagger Vance (2000)
Elosha (Lorena Gale) in the television show Battlestar Galactic (2004) 
Gloria Dump (Cicely Tyson) in the film Because of Winn-Dixie (2005)
God (Morgan Freeman) in the film Bruce Almighty/Evan Almighty.
Eddie "Scrap Iron" Dupris (Morgan Freeman) in Million Dollar Baby
Morpheus (Laurence Fishburne) in The Matrix.
Oracle (Gloria Foster) in The Matrix.
Lamont (Guy Torry) in the film American History X.
King George (David Gulpilil) and Nullah (Brandon Walters) in Australia_(2008_film) (note that these characters are Australian Aborigines and not Negros but they still possess mystical powers).