Little Bill/My Little Pony

Cast
April as Twilight Sparkle

Little Bill as Spike

Molly (From Bubble Guppies) as Rainbow Dash

Daizy (From Wow! Wow! Wubbzy!) as Pinkie Pie

Peppa (From Peppa Pig) as Fluttershy

Cassie (From Dragon Tales) as Rarity

Lindsay (From Total Drama) as Applejack