His first published fiction work, Lions, Tigers and Bears received favourable reviews from comic book reviewers, achieving sell-out status with all four initial issues as well as the first and second printings of the initial trade paperback collection.

In 2002, Bullock was employed by Dabel Brothers Productions promotions Department. During his one year employment with Dabel Brothers Productions, Bullock performed the duties of PR Director, as well as Editor on DBPro's original series, Imperial Dragons, and Dreamwave's Warlands. In addition, Bullock developed the second Imperial Dragons series for Dabel Brothers, entitled Imperial Dragons: Road of Honor.

Bullock's first original comics work was Lions, Tigers and Bears initially published by Image Comics. Lions, Tigers and Bears was created by Bullock, then developed with series artist, Jack Lawrence. Bullock's second series under the Image banner wasThe Gimoles . The second Lions, Tigers and Bears series, also authored by Bullock, began in April 2006. His newest creator-owned series, Timothy and the Transgalactic Towel debuted in September 2009 from Silverline Books, an imprint of Image Comics owned by Image co-founder Jim Valentino.

In late 2005, Bullock became the writer ofMoonstone Books' comic series The Phantom. Bullock also contributed a short story featuring the character in Moonstone's Phantom prose anthology, released in the summer of 2007.

Bullock's regular artists on the Phantom were Silvestre Szilagyi, Fernando Peniche and Bob Pedroza. He's also worked with Gabriel Rearte, Carlos Magno and Zeu. Bullock took over the book from writers Ben Raab, Chuck Dixon, and Rafael Nieves. Bullock was given the duties of Phantom Group Editor in early 2009.

After Moonstone relinquished the Phantom license in July 2010, Bullock turned took over as head writer on the Black Bat comics, as well as his own Savage Beauty comic, co-owned with Ed Catto and Joe Ahearn of Captain Action Enterprises.

• Angoulême International Comics Festival Prix Jeunesse 7-8 ans Discovery Youth Prize at the 2007 Angoulême International Comics Festival
• Paper Screen Gem Award for All-Ages Comics, Broken Frontier, 2005
• Golden Poet Award, International Poetry Society, 1989

Prior to developing his writing career, Bullock sang and played guitar in several heavy metal bands from 1986 to 1997.

Prior to developing his writing career, Bullock sang and played guitar in several heavy metal bands from 1986 to 1997.

• Ironchrist - lead vocals
• Indestroy - lead vocals, manager

Alias Comics

• Gimoles #1 (creator, writer) (2005)

Arcana Studio

• Grunts War is Hell (writer) (2008)

Archie

• SONIC X #21 starring Sonic the Hedgehog (writer) (2006)

Image Comics

• Lions, Tigers and Bears volume I (creator, writer) (2005)
• Lions, Tigers and Bears volume II (creator, writer) (2006)
• Lions, Tigers and Bears volume III (creator, writer) (2009)
• The Gimoles volume I (creator, writer) (2008)
• POPGUN volume I: Tiger-Man (creator, writer) (2008)

Moonstone Books

• The Phantom #12-26, Annual 1 & 2 (writer) (2005—2008)
• The Phantom: Ghost Who Walks #1-12, (writer) (2009—present)
• The Phantom Chronicles White Knight (writer) (2007)
• The Phantom Chronicles Bad Medicine (story/plot by Ed Rhoades) (2007)
• Zorro Enemy of my Enemy (co-writer with Matthew Baugh) (2008)
• The Phantom: Generations #8 (writer) (2009)
• The Phantom: Generations #14 (writer) (2010)
• The Phantom: KGB Noir #1-6 (writer) (2010)
• The Phantom: Captain Action #1-2 (writer) (2010)
• Black Bat:Doubelshot #1-3 (writer) 2010

Silverline Books

• Timothy and the Transgalactic Towel (creator, writer) (2009)

Ronin Studios

• Tigerman (creator, writer) (2005)
• Gimoles: Where The River Flows (creator, writer) (2005)