Thomas/Hey Arnold


 * Thomas as Arnold


 * Emily as Helga


 * Sir Handel as Gerald


 * Henry as Phil


 * Daisy Gertie


 * Gordon as Miles


 * Rosie as Mitzi


 * James as Arnie


 * Molly as Stella


 * Percy as Jamie


 * Elizabeth as Miriam


 * Isobella as Olga


 * Oliver as Jerry


 * Donald/Douglas as Kyo/Buckley


 * Bill/Ben as Martin/Stinky
 * Boco as Iggy
 * Toad as Sid