Myst was the last member of the good guys that I came up with, first appearing in an abandoned episode idea. The Halo Blades (bar Peter Edgewood) had been captured and Pete gains the help of four other dogs to rescue them. Myst was one of these extra characters. I can't remember if this was related to it, but another idea involved the HBS recruiting a few dozen extra auxiliary members for their team. I felt that the HBS needed a much larger force to pull of the successes against a powerful militarised foe. But this aspect was eventually relegated to the cutting room floor as I was ending up with a ridiculous amount of characters.
The next phase of including Myst came about in the first episode of the second season. She was to be a new member for the bad guys (who we will begin to see, starting from next month). At this point in development for Dogs Of War, I had the idea that the bad doggie characters undergo extensive genetic engineering and cybernetic enhancement between seasons one and two. The HBS convince Myst to join the good guys, using the argument that the bad guys may force her to undergo similar modifications, which she didn't want. This was another concept I abandoned, freeing up Myst once again.
Finally I just had her be one of Stylene's friends who joins her to help fight the good fight.
Myst had also been imagined as being the 'sexy' female character. This is something I had hoped to achieve whenever I created a female character, but each time I tried to sexy them up, my drawing style couldn't match what I had wanted. I'm much better at drawing now, but the sexiness factor has since fallen out of favour. She was also going to be a love interest to Peter Edgewood, but I later had other ideas for Peter and made Myst a love interest to Sledge instead.