List of Marvel Comics characters: E

List of Marvel Comics characters0–9ABCDEFGHIJKLMNOPQRSTUVWXYZEarth LordEarth SentryEarth Sentry (John Foster) is a character appearing in American comic books published by Marvel Comics. He was created by Tom DeFalco and Ron Frenz, and first appeared in A-Next #2 (1999) in the MC2 universe. When John and his father Bill were investigating a UFO crash site, they discovered a Kree space probe. Upon nearing the ship, the automated defenses activated, and a robotic sentry was released. Bill activated a distress signal which was picked up by Mainframe and the rest of A-Next. When the heroes arrived, a Sentry robot attacked them. Thunderstrike's sonic blasts and J2's superstrength were not slowing the attacker. Stinger was able to blind the robot's optic sensors with sting darts, providing an opening for John to enter the ship and try to turn off the robotic sentry. When John made contact with the ship's console, a strange energy surge ripped through the ship's computers and struck him. The energy wave reconfigured John's DNA, making him genetically similar to a Kree warrior. Finding himself clad in a green-and-white costume, similar to the original costume of Mar-Vell, John discovered