The name Steven Jay is the full birth name of the prolific American voice actor professionally known as Steve Blum. He was born on April 29, 1960, in Santa Monica, California. He began his career in voice acting in 1992 and is renowned for his distinctively deep voice.

Blum is frequently credited under various pseudonyms, including David Lucas, Daniel Andrews, and Roger Canfield, which he used early in his career to work on non-union projects. He has stated that he and the alias David Lucas are the same person.

His career is marked by an extensive and highly versatile body of work, particularly in English dubs of anime. He is perhaps best known for his leading role as Spike Spiegel in the iconic series Cowboy Bebop. Other major anime roles include Mugen in Samurai Champloo, Orochimaru and Zabuza Momochi in the Naruto franchise, Leeron Littner in Gurren Lagann, Guilmon in Digimon Tamers, and Roger Smith in The Big O. His filmography also includes roles in Ghost in the Shell: Stand Alone Complex, Wolf's Rain, and Code Geass.

Beyond anime, his voice is widely recognized from western animation and video games. He has been the voice of TOM, the robotic host of Cartoon Network's Toonami programming block, since September 2000. In animation, he has portrayed characters such as Wolverine in various Marvel projects, Starscream in Transformers: Prime, Vilgax in Ben 10, and Amon in The Legend of Korra. His video game work is exceptionally prolific, with notable roles including Tank Dempsey in the Call of Duty series, Sub-Zero in Mortal Kombat X and 11, and characters in the God of War franchise.

A significant achievement in his career came on June 5, 2012, when he was awarded a Guinness World Record for being the most prolific video game voice actor, having 261 credited appearances at that time. He has also received nominations from the BTVA Anime Dub Awards for his performances in Marvel Anime: X-Men and Tiger & Bunny.