Spitfire

Spitfire is a Pegasus pony and the captain of the aerial acrobatics group, The Wonderbolts. She makes her debut in Sonic Rainboom, and her name is first used in The Best Night Ever. She and Soarin are the first two members of The Wonderbolts to be named on the show. Spitfire is a term denoting a person with a fierce temper. The Supermarine Spitfire is also the name of an iconic British-produced, high-performance Allied fighter aircraft used in the Second World War.

Season one
Spitfire first appears in Sonic Rainboom, where she is one of the celebrity judges of the Best Young Flyer Competition; later in the episode, she gets knocked out trying to save Rarity from falling. Although Spitfire is female in the original version of the show, she is given a male voice in the Polish, Hungarian, European Portuguese, and Brazilian Portuguese dubs of the show. In The Best Night Ever, she recognizes Rainbow Dash at the Grand Galloping Gala and asks her to hang out with The Wonderbolts. However, she is too distracted by other ponies to pay much attention to Rainbow Dash.

Season two
She participates in The Wonderbolts Derby in Sweet and Elite and comes in second to Fleetfoot.

In the episode Hurricane Fluttershy, Rainbow Dash mentions that Spitfire is the captain of The Wonderbolts. Later in the episode, she supervises the other Pegasus ponies as they create a waterspout to deliver water to Cloudsdale, and seems impressed by their efforts, even though they did not break the record.

Season three
Her most recent appearance is in Wonderbolts Academy, during which her voice has a higher pitch and is raspier than it is in Sonic Rainboom, The Best Night Ever, and Hurricane Fluttershy. This is the first episode to show her cutie mark, three licks of flame resembling an abstraction of a phoenix. She acts as the drill sergeant of the Wonderbolt Academy and challenges the cadets to push themselves. She is impressed with Lightning Dust's showboating and makes her team leader, not noticing that Dust achieves her record-breaking times by putting other ponies in harm's way. Rainbow Dash confronts Spitfire about Lightning Dust's recklessness and Spitfire does not see the problem, so Rainbow Dash quits the academy; Spitfire, however, is angry, claiming that she was not given a chance to respond, catches up with her, and tells Dash that being a Wonderbolt is about "pushing yourself in the right direction", which Dash has shown her she can do. She makes Rainbow Dash the team leader, stripping Lightning Dust of her rank.

Depiction in the comics
A human counterpart of Spitfire appears as a Canterlot High School student and soccer club member in IDW Publishing's My Little Pony October 2013 annual.

Other depictions
A partially translucent mini-figure toy of Spitfire was leaked in early August 2012, and its corresponding collector card was leaked in late November 2012; the toy and card were released as part of the seventh wave of mystery packs in January 2013. The card and Soarin's card from the same wave misidentify the two ponies as each other, though the wave's packaging identifies them correctly. According to Soarin's card, "SPITFIRE is the captain of the WONDERBOLTS flying team!" Her name is listed as a trademark both on his card and on the packaging of the wave.

A trading card featuring Spitfire and Soarin', released between the second and third seasons of the show, lists Spitfire's cutie mark as a yellow lightning bolt which matches the symbol on all the female Wonderbolts flight suits.

My Little Pony mobile game description
Spitfire is the captain of the most talented flyers in all of Equestria, the Wonderbolts.

Quotes
"So you're the little pony who saved our lives. We really wanted to meet you, and say thanks."

- Sonic Rainboom

"Always hungry after a show, eh Soarin?"

- The Best Night Ever

"Hey, I know you. You're the pony that saved us in Cloudsdale and won the best flier competition!"

- The Best Night Ever

"Well Rainbow Dash, looks like your skills saved us again. Uh, well at least, they saved Soarin's apple pie."

- The Best Night Ever

"Wanna come hang out with us?"

- The Best Night Ever

"Nice job, Rainbow Dash. You may not have set a new record, but you showed a lot of guts."

- Hurricane Fluttershy

"Well looky what we got here. Bet you all think you're Wonderbolt material, don't cha? Think you got what it takes to be an elite flier? Well then, let me be the first to tell you...... You don't! If you had what it took to be an elite flier you'd already be a Wonderbolt!"

- Spitfire's rather harsh speech to the new recruits of the Wonderbolts Academy

"That's an academy record."

- Cited multiple times in Wonderbolts Academy

"Lightning Dust likes to push herself a little harder than you do. That's why I made her lead pony."

- Wonderbolts Academy

"How dare you storm out of my office without giving me a chance to respond! The Wonderbolts are looking for the best flyers in Equestria. You were right, being the best should never come at the expense of our fellow ponies. It's not just about pushing ourselves. It's about pushing ourselves in the right direction. You've shown you're capable of doing just that."

- Wonderbolts Academy

"C'mon, Rainbow Dash! What team are you playin' for?"

- My Little Pony October 2013 annual