Characters from left to right:

Murky
Dreamer (from Fallout Equestria: Tales of a Junk Pony Peddler)
BlackJack
Littlepip
Cheese Sandwich
Puppysmiles
Sunbeam (from Fallout Equestria: Tales of a Junk Pony Peddler)
Prodigious Peddler (from Fallout Equestria: Tales of a Junk Pony Peddler)
Hired Gun (Aka Sliver Storm)