Thomas/Hey Arnold

Cast

 * Thomas as Arnold (Thomas and Arnold are both the main protagonist)
 * Duck as Gerald (Duck and Gerald are both western)
 * Daisy as Helga
 * Rosie as Phoebe
 * Toby as Grandpa Phil (Toby and Phil are both old and wise)
 * Flora as Gertie
 * Mavis as Rhonda
 * Molly as Sheena
 * James as Ernie (James and Ernie are both vain)
 * Henry as Coach Wittenberg
 * Belle as Big Patty
 * BoCo as Oscar
 * Madge as Mitzi
 * Edward as Mr. Simmons
 * Dennis as Harold
 * Emily as Lila
 * Old Slow Coach as Stella
 * Gordon as Principal Wartz
 * Spencer as Councilman Gladhand
 * Diesel as The Jolly Olly Man
 * Miss Jenny as Miss Slovak
 * D261 as Wolfgang
 * Derek as Edmund
 * Diesel 10 as Scheck
 * Stanley as Arnie
 * Elizabeth as Miriam
 * Isobella as Olga
 * Neville as Jerry
 * Donald & Douglas as Kyo & Buckley
 * Caroline as Reba
 * Whiff as Stinky
 * Billy as Eugene
 * Percy as Sid
 * Duncan as Curly
 * Murdoch as Helga's Dad
 * Lady as Ruth
 * Dennis as Tucker
 * Skarloey as Peapod Kid
 * Rheneas as Chocolate Boy
 * Sir Handel as Big Gino
 * Peter Sam as Iggy
 * Splatter and Dodge as Big Gino's Assistants
 * Rusty as Mr. Green
 * Mrs. Kyndley as Mrs. Vitello
 * Harvey as Harvey
 * Lillie Lightship (from Tugs) as Lola