Young Avengers
Speed (Thomas "Tommy" Shepherd) is a fictional superhero appearing in American comic books published by Marvel Comics. The character is depicted as a member of the Young Avengers, a team of teenaged superheroes in the Marvel Universe. His powers are based on those of Quicksilver, and who first appeared in the comic book "Young Avengers" #10 (March 2006). In the 12th issue, he adopts the costumed identity Speed and joins the Young Avengers.