Keith David Williams (born June 4, 1956)[1] is an American actor and voice actor. He is known for his deep voice and screen presence[2] in over 300 roles across film, stage, television, and interactive media.

He has starred in such films as The Thing (1982), Platoon (1986), Road House (1989), Men at Work (1990), Final Analysis (1992), The Quick and the Dead (1995), Larger than Life (1996), Armageddon (1998), Where the Heart Is (2000), Novocaine (2001), Head of State (2003), Mr. & Mrs. Smith (2005), Gamer (2009), and American Fiction (2023). He starred as Elroy Patashnik in the sixth season of the NBC series Community (2015)[3] and starred as Bishop James Greenleaf in the Oprah Winfrey Network drama Greenleaf (2016–2020).

His Emmy-winning voice-over career includes work as the narrator of Ken Burns films such as The War (2007) and Muhammad Ali (2021). In film, characters that he has voiced include Dr. Facilier in The Princess and the Frog (2009) and the Cat in Coraline (2009). On television, he portrayed Goliath in Gargoyles (1994–1997), Al Simmons / Spawn in Todd McFarlane's Spawn (1997–1999), The Flame King in Adventure Time (2012–2017), Andre Curtis / The President in Rick and Morty (2015–present), King Andrias in Amphibia (2020–2022), Dr. Tenma in Pluto (2023), Husk in Hazbin Hotel (2024–present), and Mephisto in Hit-Monkey (2024–present). Video game roles include the Arbiter Thel 'Vadamee in the Halo franchise (2004–2015), Julius Little and himself in the Saints Row series (2006–2017), Admiral Anderson in the Mass Effect series (2007–2013), Chaos in Dissidia Final Fantasy (2008), Sergeant Foley in Call of Duty: Modern Warfare 2 (2009), Spawn, in MK11 and Grimlock in Transformers: EarthSpark.