Thunderlane

Thunderlane is a male Pegasus pony who first appears in the episode Hurricane Fluttershy. He has a dark gray coat, amber eyes and a blue-silver mane. His cutie mark is a storm cloud with a lightning bolt descending from it. He shares his design and eye color with "Stormbreaker".

Season two
Thunderlane first appears in the film-reel scene in Hurricane Fluttershy: he coughs, and Rainbow Dash warns him that he better not be sick for the upcoming tornado that the Pegasi have to create. Twilight Sparkle blames him for coughing during the talk Rainbow Dash gives to the group of Pegasus ponies before they begin measuring their wingpower. She sprays him with disinfectant, and he protests that it was Blossomforth who coughed. Rainbow Dash claims that he is just trying to get out of the event because he is lazy, and orders him to be the first test flier. Thunderlane is annoyed at being first up and glares at Blossomforth. After positioning himself at the starting line, he blazes down the track with a look of determination and is recorded with 9.3 wingpower, receiving cheers from crowd and an adoring look from Cloudchaser. On the day of the tornado itself, Thunderlane is missing, and Rumble, his brother, tells Dash that Thunderlane is at the Ponyville hospital due to him having the flu.

Thunderlane later makes a minor appearance as a member of a crowd in A Canterlot Wedding - Part 2. He appears in the shot after Twilight Sparkle straightens the crest on Shining Armor's chest.

Season three
Thunderlane appears again in Wonderbolts Academy as one of the recruits for The Wonderbolts. He is paired up with Sunshower Raindrops and made the lead pony of their duo. When Lightning Dust's tornado puts Rainbow Dash's friends in danger, Thunderlane catches Rarity, and gets a hug for his efforts.

Season four
Thunderlane appears in Rainbow Falls on the train with another speaking role, this time joined by Helia regarding the event they are participating in.

Thunderlane appears in the beginning of Inspiration Manifestation along with his brother Rumble at the Foal and Filly Fair.

Thunderlane appears along with Helia in Equestria Games.

Thunderlane appears in Twilight's Kingdom - Part 1 and Twilight's Kingdom - Part 2.

IDW comics
Thunderlane appears in a yearbook picture on cover A of.

Merchandise
A Thunderlane miniature collectible is included in the Soaring Pegasus Set with Derpy and rainbowfied Fluttershy. Thunderlane appears on the Season 2 poster.

Thunderlane and Rumble along with Bulk Biceps are listed as being friends of Cloudchaser and Flitter on the Flitter & Cloudchaser card (number 17) of series 2 of Enterplay's trading cards.

Quotes
"It wasn't me, it was Blossomforth."

- Hurricane Fluttershy

"Too bad we can only compete in one event. [sighs] But, rules are rules."

- Rainbow Falls