Upton Abbey

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

Characters

 * Thomas (Thomas, Earl of Gantam)
 * Sophie (Sophie, Countess of Gantam)
 * Austin (King Austin)
 * Uniqua (Queen Uniqua)
 * Andrew (Detective Andrew)
 * Pablo (Dr. Pablo Watson)
 * Tyrone (Count Tyrone)
 * Tasha (Countess Tasha)
 * Victor (Colonel Victor)
 * Denise (Chef Denise)
 * Martin (Butler Martin)
 * Henwen (Maid Henwen)
 * Moe (Yeoman Moe)