Harold/Toby

Cast

 * Harold as Toby
 * Hank as Hiro (Hank and Hiro both start with H)
 * BoCo as Hank
 * Derek as Spencer (Derek and Spencer both start with Sqaure Faces)
 * Bulgy as Diesel
 * Jeremy as Billy
 * Salty as Thomas
 * Bertie as Kevin
 * Bill as Splatter
 * Ben as Dodge
 * Trevor as Skarloey
 * S. C. Ruffey as James
 * Donald as Donald
 * Douglas as Douglas
 * Henry as Salty
 * Issobella as Elizabeth
 * Madge as Emily
 * Whiff as Wilobert (from RWS)
 * Rosie as Mavis
 * Duck as Freddie
 * Colin as Kelly
 * Splatter as Den
 * Dodge as Dart
 * Stanley as Duck
 * Jack as Oliver
 * Alfie as Toad
 * Byron as Byron
 * Ned as Ned
 * Kelly as Arthur
 * Patrick as Smudger
 * Nelson as Trevor
 * Buster as Bertie (Buster and Bertie both start with B)
 * Bash as Bash
 * Dash as Dash
 * Flora as Madge
 * Smudger as Bulgy
 * Arry as Bill
 * Bert as Ben
 * Randy Marsh (from South Park) as Mr. Percival
 * Sharon Marsh (from South Park) as Mrs. Percival
 * Ferdinand as Scruff
 * Oliver as Duke
 * Rocky as Rheneas (Rocky and Rheneas both start with R)
 * Gordon as Dennis
 * James as Diesel 10
 * Daisy as Caroline
 * The Spiteful Brakevan as Bulstrode
 * Hiro as Flynn
 * D261 as Gordon
 * Elizabeth as Belle
 * Hector as Cranky
 * The Foreman as Sir Topham Hatt
 * Miss Jenny as Lady Hatt
 * Thomas as Harold
 * Emily as Flora
 * Diesel 10 as Sixteen (from RWS)
 * Paxton as Percy (Paxton and Percy both start with P)