Arthur/Olivia


 * D.W. as Olivia
 * Arthur as Ian
 * Jane Read as Olivia's Mother
 * David Read as Olivia's Father
 * Kate as Baby William (both are babies)
 * Buster as Julian
 * Francine as Francine (both have the same name)
 * George as Harold
 * Mrs. Morgan as Mrs. Hoggenmuller
 * Pal as Perry
 * Nemo as Edwin
 * Timmy as Oscar
 * Tommy as Otto
 * Muffy as Daisy