Clarence John Brown III is an American actor. Prolific in film and television since the 1980s, Brown is often cast in villainous and authoritative roles, and is known for his versatility in both live action and animated productions. Brown's film roles include Viking Lofgren in Bad Boys (1983), The Kurgan in Highlander (1986), Capt. Byron Hadley in The Shawshank Redemption (1994), Sgt. Charles Zim in Starship Troopers (1997), and Stanley Thomas in Promising Young Woman (2020). On television, he has played Brother Justin Crowe on the HBO series Carnivàle (2003–2005), Waylon "Jock" Jeffcoat on the Showtime series Billions (2018–2019), and Kurt Caldwell on the Showtime series Dexter: New Blood (2021–2022). Brown provided the voices of Mr. Krabs on SpongeBob SquarePants (1999–present) and Lex Luthor in the DC Animated Universe (1996–2006), and several subsequent DC Comics animated projects. Other characters he has voiced include Doctor Neo Cortex and Uka Uka in the Crash Bandicoot franchise (1997–2003), Savage Opress in Star Wars: The Clone Wars (2011–2013), Surtur in Thor: Ragnarok (2017), and Hank Anderson in Detroit: Become Human (2018).