The Extremis Soldier has dark brown hair. His head is glow-in-the-dark and is double sided, one side depicting a serious expression and the other with an angry expression. The first side has black eyes and light grey cheekbones with a serious expression, while the second has red eyes with red veins and cheekbones. The torso and arms are dark stone grey with black hands, hips and legs. The torso is printed with the muscles cut on the shirt that has a zipper, the collar, stitch lines near the arms, and red lines depicting designs all over the shirt. He has back printing depicting the back of the shirt, the muscles cut on his back, the red lines, the collar and arm stitches from the front.
Eric Savin was the driver and bodyguard of Aldrich Killian and abused the Extremis virus for his own uses. He attacked Happy Hogan to the point of landing Hogan in the hospital. He led the attack on Tony Stark's Malibu mansion. He donned the stolen Iron Patriot suit to board Air Force One and kidnap President Ellis, which he was succesful, despite Iron Man's best efforts to stop it. He later attacked Tony when he was hiding out in Rose Hill, but Tony managed to defeat him.