[quote=@IceHeart]
Also just a question on the supporting cast, do they have to be all 'real' characters?  Like I remember thinking about a character once but then I realized I didn't know crap about any of the characters around that character so kinda got spooked out of trying.  I felt like this part is the biggest 'obstacle' for me in making something.
[/quote]

In terms of making up characters, a lot of us have. I've had to make a lot of Iris' supporting cast off the top of my head rather than just using Barrys, not all of them have had an appearance yet but... they exist. [@Byrd Man] had an OC play a pretty important part to Constantines story.