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Marvel

Tommy Shepherd, known as Speed, is a Marvel Comics superhero. He is a mutant with the power of super-speed, similar to Quicksilver, and is a member of the Young Avengers.

Tommy is one of the twin sons of the Scarlet Witch and Vision, mystically created and later thought to be erased from existence. He and his brother, Wiccan, were eventually reincarnated as separate children with latent mutant abilities.

Brought together by the Iron Lad, a younger version of Kang the Conqueror seeking to avert his future, Tommy joins the Young Avengers. His powers allow him to move at incredible speeds, generate hyper-kinetic vibrations, and create concussive blasts.

Throughout his adventures, Tommy struggles with controlling his powers and understanding his origins. His relationship with his brother Billy (Wiccan) is a central element of his character, as is the mystery surrounding their parentage and connection to the Scarlet Witch.