Davis Doi Director Damon Wayans Jr. Wild Arms Voice Reba McEntire Etta Voice Jeff Bennett Petrie Voice Miriam Flynn Grandma Longneck Voice Rob Paulsen Spike Voice Scott Whyte Bron Voice Anndi McAfee Cera Voice Felix Avitia Littlefoot Voice Elana Lesser Screenwriter Cliff Ruby Screenwriter Deirdre Brenner Producer Lisa Melbye Producer Luke Guidici Film Editing Michael Tavera Original Music Sean Platter Art Director Susan Blu Casting Ruth Lambert Casting Robert McGee Casting