Thomas/Caillou

Thomas as Caillou and more
 * Percy as Leo
 * James as Mr. Washington
 * Edward as Billy
 * Henry as Boris
 * Emily as Doris
 * Donald and Douglas as Jason and Jeffery
 * Skarloey as Gilbert
 * Rosie as Rosie ( Rosie and Rosie both had the same name)
 * Mavis as Sarah
 * Molly as Clementime
 * Isabella as Mrs. Martin