He is sometimes credited as David Lucas, Richard Cardona, Roger Canfield, Tom Baron, and Daniel Andrews in various anime and other live-action appearances.

When he was 12 years old, Blum worked at the comic section of his grandfather’s book store in Hollywood, California where he would sort and catalogue titles.

[7][8] His credits include the voice of Spike Spiegel in Cowboy Bebop, Zeb Orrelios in Star Wars Rebels, Mugen in Samurai Champloo, Roger Smith from The Big O, Orochimaru, and Zabuza Momochi in Naruto and Wolverine in multiple Marvel productions.

In video games, he provided the voice of main protagonist Jack Cayman in MadWorld, Captain Foley and Tank Dempsey in the Call of Duty series, Professor Galvez in Metal Gear Solid: Peace Walker, Ares in God of War, and God of War: Ascension, main protagonist Grayson Hunt in Bulletstorm, Brimstone in Valorant, Zoltun Kulle in Diablo III, Sub-Zero in Mortal Kombat X and 11, Hal Jordan / Green Lantern in Injustice 2, Rytlock Brimstone in Guild Wars 2, and main protagonist Capt.

In animation, he is the voice of Heatblast, Ghostfreak and Vilgax in the Ben 10 franchise; Garazeb Orrelios in Star Wars Rebels; Count Vertigo in DC Showcase: Green Arrow and Young Justice; Wolverine, Red Skull, and Beta Ray Bill in Wolverine and the X-Men and The Avengers: Earth's Mightiest Heroes; Starscream in Transformers: Prime; Heatwave in Transformers: Rescue Bots; and Amon in the first season of the Nickelodeon animated series The Legend of Korra.