The Haunting of Sleepy Hollow

 is the twenty-first episode of "Backyardigans x Frontyardigans" written by Hornean.

Characters

 * Martin (Martin "Ichabod" Crane)
 * Pablo (Sir Pablo)
 * Tyrone (Squire Tyrone)
 * Uniqua (Princess Uniqua)
 * Tasha (Weaver Tasha)
 * Austin (Headless Horseman and Prince Austin)
 * Andrew (King Andrew)
 * Moe (Wizard Moe)
 * Henwen (Queen Henwen)
 * Sophie (Sophie Van Tassel)
 * Thomas (Thomas "Brom" Bones)