Emerald Green

Emerald Green is a background Earth pony with an orange coat, white mane and tail, blue eyes, and a cutie mark of four green gemstones. He is not named in the show, but he is named in merchandise.

Design
Emerald Green shares his design with "Silver Script", "Stormfeather", and S05E01 Unnamed Pegasus Stallion #1, shares his mane and tail style with Bright Bulb, Comet Tail, "Chocolate Haze", "Klein", and S04E22 Unnamed Unicorn Stallion #3, shares his tail style with Apple Cinnamon, Cerulean Skies, Coco Crusoe, Felix, Goldengrape, Noteworthy, Prism Glider, Rainbow Blaze, Rainbow Swoop, Red Delicious, Whitewash, "Baritone", "Blue Bonnet", "Cherry Strudel", "Cloudy Haze", "Sterling Silver", "Welch", S04E24 Unnamed Earth Stallion #8, S04E06 Unnamed Earth Stallion #1, S04E08 Unnamed Earth Stallion #8, S04E08 Unnamed Earth Stallion #13, S04E22 Unnamed Earth Stallion #8, S04E22 Unnamed Earth Stallion #11, and sometimes "Thorn", and shares his cutie mark with Rare Find and "Sunstone".

Depiction in the series
Emerald Green first appears as a Pegasus pony and weather factory worker in Sonic Rainboom. Later, in The Super Speedy Cider Squeezy 6000, he appears as an Earth pony sharing cider with Rainbow Swoop.

In Hurricane Fluttershy, Emerald Green appears again as a Pegasus and one of numerous other Pegasi volunteering to transport water to Cloudsdale. In Apple Family Reunion, Emerald Green appears as a Pegasus at the family reunion during the start of Raise This Barn.

Emerald Green appears, once again as a Pegasus, in Pinkie Pride during Pinkie Pie and Cheese Sandwich's goof-off. He attends the titular sporting event in Equestria Games and helps other Pegasi move clouds in Tanks for the Memories.

Appearances
Times are approximate.

My Little Pony (mobile game)
Emerald Green is a playable character in Gameloft's mobile game, added in the version 2.1 update. His in-game description states, "Emerald Green is Sweet Apple Acres' resident cider aficionado and is known for serving up the most delicious apple cider in all of Equestria!"

Merchandise
In Enterplay's collectible card game, Emerald Green is named and identified as an Earth pony on his own card #12 C, which gives him the description "Emerald is sometimes confused for his winged cousin in Cloudsdale. He doesn't really seem to mind." According to Enterplay's May 9, 2014 full card list by Christine Hullemeyer, Emerald Green "was Green Gem".