Sea Swirl

Sea Swirl is a female unicorn pony with a lilac coat, iris mane and tail with a light glaucous streak, raspberry rose eyes, and a cutie mark of two encircling dolphins; one light glaucous and one iris. Her name has not been used on the show, but she is named in merchandise. She shares her design with Minuette. Sea Swirl has a speaking role in The Cutie Pox and in Applebuck Season.

Depiction in the series
Sea Swirl is commonly featured as a background pony. She makes her first appearance in episode 1 at the surprise party that Pinkie Pie throws for Twilight Sparkle in the Ponyville library. In The Cutie Mark Chronicles, she stands on a cloud in the sidelines of the race track in Fluttershy and Rainbow Dash's flashbacks of flight camp, even though she is not a Pegasus pony—it was stated by Rainbow Dash in Sonic Rainboom that only Pegasus ponies can stand on clouds. However, as proved by Twilight Sparkle in the same episode, a spell exists that enables non-Pegasus ponies to accomplish the feat, making the circumstances around Sea Swirl's station in The Cutie Mark Chronicles much more plausible.

She appears in a bowling alley in The Cutie Pox. She has her first speaking role when she makes an exclamation about "a bowling cutie mark", which a colt earns in the scene. In A Canterlot Wedding - Part 2, she is one of twelve horn-blowing unicorns at the wedding during This Day Aria.

In Sweet and Elite, a background pony that shares Sea Swirl's coat, mane, and eye color, and tail design is seen as a part of Fancy Pants' entourage of noble ponies at the Wonderbolts Derby and again at the Canterlot garden party.

Sea Swirl appears in Princess Twilight Sparkle - Part 1, Princess Twilight Sparkle - Part 2, and Flight to the Finish.

Appearances
Times stated below are approximate and taken from videos available online.

IDW comics
Sea Swirl, wearing her high society outfit previously worn in Sweet and Elite and later worn in Princess Twilight Sparkle - Part 1, appears throughout, accompanying Praiser Pan, Rarity, "Vance Van Vendington", Upper Crust, Fleur Dis Lee, and Fancy Pants to Princess Celestia's Extreme Art Contest.

Sea Swirl appears on page 20 in Zen and the Art of Gazebo Repair and on  page 14 in Zen and the Art of Gazebo Repair - Part Deux "If You Only Have a Hammer, You See Every Problem as a Nail".

Chapter books
Sea Swirl appears with Rose in chapter 2 of My Little Pony: Pinkie Pie and the Rockin' Ponypalooza Party!, "Pinkie's Party Ponies".

Merchandise
A mini-figure toy named Sea Swirl was released in January 2012 as part of the third wave of mystery packs. The toy uses the Rarity mold but features Sea Swirl's color scheme—albeit with red-orange eyes instead of rose—and cutie mark. Her name comes from the mystery pack packaging and collector card. According to the European version of the card, Sea Swirl "loves the sea". The U.S. version of the card lists Sea Swirl's name with a trademark symbol and has a longer description reading, "SEA SWIRL loves to go swimming in the ocean!"

A second Sea Swirl mini-figure toy and collector card pair was released in November 2013 as part of the ninth wave of mystery packs, which also lists her name with a trademark symbol.

Sea Swirl also appears with her name listed with a trademark symbol in Enterplay's collectible card game, in which she is simultaneously referred to by name and depicted with the same design and eye color as in the show. Her card α #93 R gives her the description "Sea Swirl loves living in Ponyville, but she still takes regular train rides to go swim in the ocean whenever she can take a couple days to herself."

Sea Swirl appears standing next to Noteworthy on page 19 of the upcoming book Winning Style.

Quotes
"Cool! A bowling cutie mark!"

- The Cutie Pox