Unlike his counterpart, he doesn't wear a mask, but has a similar attire which consisted of a fedora hat, trenchcoat, purple gloves and pinstripe suit, giving him a classical detective look. Damien also has similar mannerisms to Rorschach, often using the interjection "Hurm", much like the latter does. His red features are fanged and bestial. A denizen of Hell, he works as a Private detective on Earth, usually investigating superhero matters.
Events of Invincible
When the Guardians of the Globe were mysteriously killed, Damien sets out to investigate. He theorized that someone had used Black Samson, but Omni-Man disputes this. Damien then interrogated Black Samson, only to find out that he's innocent. He then moved on to investigate one of the many villains that the team had previously fought.
Unaware that Omni-Man had confessed to the killing, he returned to the Pentagon to report his findings only to be laughed at by the secretary at the front desk.
Events of Astounding Wolf-Man
In the pages of Astounding Wolf-Man Damien Darkblood was hired by Chloe Hampton to find her father's former mentor, the vampire Zechariah.