In a very close race, it was eventually decided that Derpy shall be The Invisible Mare.
Here is how the voting went:
In Favor of Derpy Ray Bill: 4 (star1wars3, Panama, mbpony 512, JZ1)
In Favor of Invisible Mare: 6 (Sonic Mario3, Batbrony, Flutterguy89, Jabberwocky1996, Xenotype, Inferno demon Dash)
However, for those hoping for Beta Ray Bill, here is our savoir:
Also, I figured out my Mockingbird.
Now, moving on. Here is a long list of various background characters who have not yet been cast. They can be a hero, a villain or a civilian. It’s all up to you.
Braeburn (cutting him out of the Iron Mare rewrite, instead going to focus on Sweetie Belle and Rarity’s relationship, so now he’s in the open once more)
Flim and Flam
Spa Ponies (Aloe, Lotus and Vera)
Jet Set and Upper Crust (had a cameo in Iron Mare, but that’s it)
Gustave le Grade (for da lolz)
Cloud Kicker (Note: Will most defiantly NOT be like the Cloud Kicker of the Winningverse. No nymphomania here thanks)
The Flower Trio (Daisy, Lily and Roseluck)