Eric Savin (Character) - Eric Savin was a lieutenant colonel in the United States Army at Camp Killian, and was put in charge of Project: Ultra-Tech. There he met the love of his life, Lieutenant Gina Dyson. While on patrol, Savin stepped onto a freshly planted mine which blew him into pieces. He was dead for 2.3 minutes. Gina immediately performed cybernetic surgery on him. The surgery was successful — Savin was alive, but resurrected as a cyborg by Mako's Project: Ultra-Tech. Dyson aided him in battling Mako's robots and apparently slew Mako in combat. He then goes by "Coldblood-7" from there on; the 7 in the name was a mere wordplay on his real name as his surname is pronounced in the same way.

Coldblood gave in to his cyborg-form at one point but was brought back to his human side with Gina's help. In later missions, Coldblood was hired by Roxxon Oil and had to get a stolen biochemical weapon back from Dr. Jonathan Cayre's lab. Coldblood gained the help of the original Excalibur team and succeeded in his mission.

As an urban soldier cyborg, Coldblood operated as a freelance mercenary. He evaded capture by Mechadoom. Coldblood hunted down and fought Deathlok (Michael Collins) in Paris. He then joined forces with Deathlok and Siege in defeating Harlan Ryker's cyber-warriors. Again later, he worked together with fellow cyborg Deathlok, Silver Sable and the Wildpack against the villain group ULTIMATUM.

Coldblood was seen together with Monica Rambeau, Wonder Man, Darkhawk, Dracula, Terror, Sleepwalker and Deathlok held hostage because of the Stranger.

In the 2006-2007 Civil War storyline, Coldblood was one of the many super-heroes against the Superhuman Registration Act, and was arrested. He is seen being transported to the super-prison 42 built within the Negative Zone, but almost immediately suffers a paralyzing, psychotic break apparently due to the sensory warping effects of this new environment and his own anguish. After being freed during the resistance's exodus, Coldblood is later seen in the background behind Captain America and the others Anti-Registration heroes just before the final confrontation with Iron Man and the Pro-Registration heroes. Coldblood then participated during the battle between both sides, and was later referred to being missing in action.