tl;dr Hey look it’s (Hard)Case finally, as a cousin to the main 7 bros, and Dogma’s older brother.
RIGHT okay I meant to put my thinking cap on for Hardcase ages ago, but kept forgetting. Shoutout to @nevawaveharp for accidentally reminding me! When I first assembled the main Fett family, I was only vaguely aware of canon regiments and companies and whatnot. I just threw clones in semi-randomly based on things I recalled offhand from my first watchthrough of the first season or two. Actually, it was the “research” that I then did for this AU that made me better at being able to tell apart and keep track of clones in the show, so eventually I noticed that I missed Hardcase. I mean, I’ve missed a lot, but Hardcase routinely interacted with many of the clones I grabbed for bros.
I was stuck for a while on where to stick him. Stupidly, it was mostly because of his name. I’ve let weird things like “Dogma” slip by, but “Hardcase” is just… it doesn’t sound like a reasonable legal name at all to me. But I don’t want to overuse the “they just go by a weird nickname” thing, so I thought maybe he should be a pet? (Tangent: While Fives is stubborn to the point of possibly legally changing his name, Echo actually mostly just uses ‘Echo’ with family and older friends. When he’s an adult, colleagues and newer friends use his legal name.) But then my brain finally switched on and I was like “Wait… I have a dude friend named Casey. I bet just Case is a name, too.” And it is. But still, where to stick him?
I toyed with retconning myself and making him a bro between Echo and Tup, but I just like the dynamic I have set up for the 7 too much. I poked around Wookiepedia for inspiration, and his helmet designs made me think of freckles. Freckles! I gave Dogma freckles! BAM, bros. Especially once I started imagining how hilarious it would be watching them interact. So yeah. Case and Dogma, the freckle-y cousins.