Sonic/The Grim's Adventures of Billy & Mandy

Cast

 * Dr. Robotnik/Dr. Eggman as Grim
 * Sonic as Billy
 * Amy as Mandy
 * Vanilla as Gladys
 * Vector as Harold
 * Espio as Billy's Grandpa
 * Charmy as Milkshake
 * Shadow as Nergal
 * Knuckles as Nergal Jr.
 * Rouge as Aunt Sis
 * Metal Sonic as Billybot
 * Tails as Irwin
 * Chris Thorndyke as Melvin
 * Nelson Thorndyke as Dick
 * LIndsey Thorndye as Judy
 * Chuck Thorndyke as Poppin Lockin
 * Ella Thorndya as Tanya
 * Cream as Mindy
 * Zeena as Eris
 * Manic as Phillip
 * Sonia as Claire
 * Blaze as Mrs. Butterbean
 * Silver as Principal Goodvibes
 * Mama Robotnik as Miriam
 * Gerald Robotnik as Earl
 * Jet as Nigel Planter