Jason Todd (Earth-5171)

"I'm with you until the end of the line, Bruce."

- - Robin Jason Todd, better known as Robin, was a soldier of the 107th Infantry Regiment and a friend since childhood of Bruce Wayne. During World War II, after being saved by Bruce as the world's first superhero, Batman, Todd decided to aid his friend, and, after rigorous training, became his partner against the Axis and HYDRA, Robin, becoming the co-leader of the Howling Commandos. Together they fought in many battles through World War II, until Robin was presumed killed during a failed invasion at the Arkham Castle while on the HYDRA Train. Robin was, however, alive, though at the cost of his left arm, and was found by Scarecrow, who, after the death of Black Mask and the presumed death of the Joker, took the leadership of HYDRA and made Jason their new weapon against the free world, the silent assassin known as Winter Knight, until he battled against Batman in the 21th Century and was freed of his brainwashing, becoming the brutual vigilante known as Red Hood.