Gary Anthony Williams (born March 14, 1966) is an American actor. He's best known for voicing Uncle Ruckus on The Boondocks, Thunderball on The Avengers Earth's Mightest Heroes, Mongul & Mongal on Batman the Brave & the Bold, the Mutant Leader in The Dark Knight Returns two-parter, Mufasa on The Lion Guard, Dad McStuffins on Doc McStuffins and even a Optimus Prime parody on MAD.
Live action wise, he's also Abe Kenarban on Malcolm in the Middle, a regular on Whose Line Is It Anyway? and Bebop in the Michael Bay-produced Teenage Mutant Ninja Turtles: Out of the Shadows.