Question: is shadow in sonic x?
Answer: Shadow the Hedgehog (シャドウ・ザ・ヘッジホッグ, Shadō za Hejjihoggu?) is a character that appears in the anime series Sonic X and its comic series published by Archie Comics. He is a dark doppelgänger hedgehog and the arch-rival of Sonic the Hedgehog. Shadow was created by Gerald Robotnik, and is the end result of Project Shadow.