I think some people have already pointed out how Rainbow Dash is almost a carbon copy of Butercup from The Powerpuff Girls. Their voices are nearly identical, they have the same personality, etc.

Well, there's also a carbon copy of Fluttershy out there. Any Gundam SEED fans know that Lacus Clyne is a sweet, overly polite character. As to her love of animals, well, take a look at this video at about three minutes in. (Youtube has literally nothing but music videos on the subject.) Granted Lacus isn't quite as shy but she sounds nearly the same and both characters actually burst into song several times. Heck, they even have the same hair.

Rays of the noon sun cast long shadows against the bedroom wall as dust motes danced in the beams. Tucked up against the bay window lay a wood-carved bed with deep purple covers pulled up to the headboard. A lumpy mass moved underneath the sheets as a sleepy mumble emanated from the white down pillow now jutting from the mass of purple.

Once the movement ceased, the head of the bed’s occupant, Twilight Sparkle, was now visible. Her normally placid mane was a frizzy mess; the infamous bed-mane having claimed another victim. She sighed deeply to herself, still asleep and blissfully unaware of the world around her.

“PONY PILE!”

(Fwoom)

The purple unicorn was immediately ejected from her cocoon of covers and tossed into the air. Her eyes snapped open as she plummeted face-first back onto the spring-filled mattress. With a garbled yell, her head was buried in a cloud of floating feathers as her pillow exploded.

“It’s about time you woke up you sleepy head.” Twilight groaned as she pulled her face from the impact site.

“Pinkie Pie, ” she groaned. “Why?”

“Why, ” the cotton-candy pink pony asked. “Well, you’ve been asleep all day and I was afraid something happened and then Spike told me you were up all night and I was like ‘HUUHHH’ and then I waited and waited and – ” Twilight put her hoof to Pinkie’s mouth, silencing the hyperactive pony.

“What do you mean ‘all day’?” Twilight asked, looking over at her alarm clock on her nightstand.

“I mean that it’s already lunch time silly filly.” Twilight wanted to rebuke her friend, but the clock’s hand’s did not lie. It was already a quarter past noon.

“Wait, how did I sleep in? I set the alarm for eight this morning.”

“That one was me Twi’, ” The purple dragonling nudged the bedroom door open with the corner of a breakfast tray he was balancing on the top of his head. “Owlowiscious told me you pulled another all nighter, so I got up extra early and turned off your alarm clock.”

“Spike, ” Twilight moaned. “Wait, since when did you and Owlowiscious talk?”

Spike grinned as he placed the tray on Twilight’s desk, nudging aside several books in the process. “Well, we came to a gentleman’s agreement. He’s really quite talkative once you get to know him.”

“But isn’t his entire vocabulary one word?” Spike shrugged as he brought Twilight over a plate.

“There you go, one peanut butter and apple sandwich.”

“Spike, you know I hate peanut butter.”

“OH, ” Spike hastily withdrew his fingers as Pinkie Pie bit the sandwich out of his hands. “Datch one’s mime.” She announced, trying to speak through the copious amount of sticky residue in her mouth.

“Ok, ” he sighed, reaching for another plate on the tray. “Here, some celery and carrots, along with a freshly toasted corn muffin. Oh, and Granny Smith sent over some more of that apple and cinnamon tea you like.”

Twilight sighed to herself as she floated the china teacup to her lips. “Mmmm, that’s wonderful.”

Pinkie Pie, however, interrupted the unicorn’s moment of bliss. Almost immediately, the curly-maned pony began making frantic motions with her legs; her hooves flailing about in wide patterns.

“Um, Pinkie Pie, what’s wrong?” Twilight asked, setting the teacup down on her nightstand. Pinkie continued to wave her arms around while making spitting noises with her tongue.

“Umm, you wanna start a cart-wash for Sugarcube Corner?” Spike suggested. Pinkie shook her head before putting a hoof to her lips and opening her mouth.

“You need a bullhorn?” Twilight asked. Pinkie shook her head again. This time, she made grabbing and pulling motions with her hooves, all while grunting and groaning.

“Umm, I’m not sure I wanna know what that is supposed to be.” Spike announced.

Pinkie slapped a hoof to her face and sighed. Twilight cringed as the pink party pony opened her mouth, revealing a mass of gooey peanut butter clinging to the insides of her cheeks.

“I meedpth milmk.” She shouted; her words muffled by the sticky obstruction.

“Well why didn’t you just say so in the first place?” Twilight asked. Pinkie’s mouth snapped shut as she leveled a flat stare at her unicorn friend.

“Downstairs, in the fridge, behind the turnips, ” Spike told her. Pinkie saluted with her hoof before galloping out of the room. “And don’t touch the sapphires in there. They’re my dessert for tomorrow!”

I think some people have already pointed out how Rainbow Dash is almost a carbon copy of Butercup from The Powerpuff Girls.