Knuckles/Phineas and Ferb

Cast

 * Knuckles as Phineas
 * Espio as Ferb
 * Tikal as Candace
 * Sonic as Perry
 * Rouge as Isabella
 * Charmy as Baljet
 * Vector as Buford
 * Shadow as Major Monogram
 * Metal Sonic as Dr. Doofenshmirtz