Fine Line

Fine Line is a female background unicorn pony with a light yellow coat, brown mane and tail, and blue eyes. Her cutie mark is unknown. She is unnamed in the show, but she is named in merchandise.

Development
Fine Line is named after Fran Fine from The Nanny, which her Enterplay card description references.

Depiction in the series
Fine Line appears with her tail sometimes pink instead of brown in The Best Night Ever, in Sweet and Elite, in A Canterlot Wedding - Part 1, with her tail sometimes pink instead of brown again in A Canterlot Wedding - Part 2, in Magical Mystery Cure, in Princess Twilight Sparkle - Part 1, in Power Ponies, in Rarity Takes Manehattan, in Pinkie Pride, in Simple Ways, in For Whom the Sweetie Belle Toils, in Equestria Games, and with her tail sometimes pink instead of brown yet again in Twilight's Kingdom - Part 1.

Appearances
Times are approximate.

Merchandise
Fine Line is named on her Enterplay collectible card game Canterlot Nights expansion set card, which gives her the description "Fine Line moved from Manehattan to nanny the foals of Canterlot elite, but an upper class stallion caught her heart and changed her life forever."