Adventures of Sonic the Hedgehog: Characters Rate: –☹️ Very Bad🙁 Bad😐 Average🙂 Good😃 Excellent🤩 Super! ★ Save Rating✔ Rating Saved! Notify me: –about new episodeabout new seasonabout end of season Subscribe✔ Subscription Saved! Adventures of Sonic the Hedgehog Adventure, Children 9/6/93 – 11/24/96 United States GeneralEpisodesCastCharactersGallery Characters See all characters → Sonic the Hedgehog Dr. Ivo Robotnik