Clarence J. "Clancy" Brown III voiced Surtur in Thor: Ragnarok.
He also portrayed Ray Schoonover in the Daredevil episodes Guilty as Sin and The Dark at the End of the Tunnel.
- Clancy Brown is one of the actors who have portrayed multiple characters in the Marvel Cinematic Universe.
- Clancy Brown also voiced Sasquatch in The Incredible Hulk.
- Clancy Brown also voiced Raymond and Policeman in Spider-Man: The New Animated Series.
- Clancy Brown also voiced Nathaniel Essex/Mister Sinister in Wolverine and the X-Men.
- Clancy Brown also voiced George Stacy and Alex O'Hirn/Rhino in The Spectacular Spider-Man.
- Clancy Brown also voiced Odin and Troll in The Avengers: Earth's Mightiest Heroes.
- Clancy Brown also voiced Taskmaster in the animated films Iron Man and Captain America: Heroes United and Heroes United and Ultimate Spider-Man.
- Clancy Brown also voiced Uatu the Watcher in Avengers Assemble and Hulk and the Agents of S.M.A.S.H..
- Clancy Brown also voiced Black Bolt and Supreme Intelligence in Hulk and the Agents of S.M.A.S.H..
- Clancy Brown also voiced Thaddeus Ross/Red Hulk in TV series Hulk and the Agents of S.M.A.S.H., Ultimate Spider-Man and Avengers Assemble.
- Clancy Brown also voiced Ben Parker in Ultimate Spider-Man.
- Clancy Brown is one of the actors to portray characters for both Marvel Studios and DC Entertainment. He portrayed Wade Eiling in the The Flash and voiced Parallax in Green Lantern, Lex Luthor in Superman: The Animated Series, Justice League, Justice League Unlimited, The Batman, Batman: The Brave and the Bold, Superman/Batman: Public Enemies, LEGO Batman: The Movie - DC Super Heroes Unite and the video games Superman, Superman: Shadow of Apokolips, Lego Batman 2: DC Super Heroes and Lego Batman 3: Beyond Gotham, Big Time in Batman Beyond, Wally West/The Flash in Justice League Unlimited, Victor Fries/Mr. Freeze and Bane in The Batman, Per Degaton and Mugger in Batman: The Brave and the Bold, King Faraday and Firebreather in Young Justice, Zartok in Green Lantern: The Animated Series and Negative Man and General Immortus in Doom Patrol.
- Clancy Brown also voiced Razhar in the comic book adaptation Teenage Mutant Ninja Turtles: Danger of the Ooze. He also voiced Chris Bradford/Dogpound/Razhar, Neutrinos and Lieutenant Zax in Teenage Mutant Ninja Turtles.
- Clancy Brown also portrayed Meacham in the comic book adaptation Cowboys & Aliens.