Starlight Glimmer

Starlight Glimmer is a female unicorn pony with a purply color scheme and a cutie mark either of a star with two glimmering streams or of an equals sign. She appears as the main antagonist of the two-part season five premiere, and either she or a similar pony appears as a background character in Friends Forever Issue 14.

Development and design
Starlight Glimmer has a similar color scheme and name to Evening starlite and a similar color scheme to the non-siren forms of Aria Blaze. Part of her non-= cutie mark is similar to the compass rose cutie mark of "South Pole", of Léon, usually of Prince Blueblood, sometimes of Blue Moon, and in some material of Friends Forever 13 Unnamed Stallion - Doctor. Her name follows the same pattern as Twilight Sparkle, Sunset Shimmer, and Starbeam Twinkle and includes the name of G1 Starlight.

In mid-February 2015, Jim Miller was asked regarding Starlight Glimmer's resemblance to Evening starlite and replied about him having no idea who Evening starlite is and them being not the same as far as he can tell. Later in the same month, he stated that Starlight Glimmer's name is not "Mayor Marx" or variations thereof, was asked in reply, "What is it? Or is that still classified?", and replied back, "You'll find out once the episode airs!"

'Big' Jim teased that Starlight might return in a future episode.

Depiction in the series
According to a press release from Discovery Family, Starlight Glimmer is the leader of a mysterious village where everypony has given up their cutie marks. They soon discover that Starlight has a different agenda and "has a vastly different and rather sinister view on friendship and the individual talents that make Equestria's ponies so special."

Other depictions
In the IDW comics' My Little Pony: Friends Forever Issue #14 page 21, one of the ponies at Fillydelphia at least has a horn and coat and mane colors similar to those of Starlight Glimmer and Evening starlite.

Merchandise
A Playful Ponies brushable toy of Starlight Glimmer, with her non-= cutie mark, has been displayed at the 2015 American International Toy Fair.

Quotes
"Welcome! I'm so pleased to have you here!"

- The Cutie Map - Part 1

"Please enjoy our little corner of Equestria. We're all quite fond of it. No doubt you will be as well."

- The Cutie Map - Part 1

"Only way to be really happy is if we're all equal."

- The Cutie Map - Part 1

"When the rest of Equestria sees that a princess gave up her cutie mark to join us, they'll finally understand what we're trying to accomplish."

- The Cutie Map - Part 1