Talk:List of ponies/Unicorn ponies/@comment-76.9.78.163-20120410065224/@comment-64.118.123.130-20120419063427

The creator has stated "I have no control on anything, really" (though in response to the Derpy issue, not Holly Dash). She did put Holly Dash into that one scene, but that's it—technically, the pony in the show is just based on Holly Dash (like how those four stallions in The Cutie Pox are based on characters from The Big Lebowski), and doesn't have a truly official name (unless other crew members also call that pony Holly Dash).

(The name not being said in the show isn't a reason why it shouldn't be considered official, though—just look at all the ponies who are only named in the toy line.)