Mess not with the ugnaught
Why are Cara Dune and Kuiil successful characters on The Mandalorian, whereas some of these other colorful folks have fallen flat (remember bad Han Solo)? Because they're the two characters who have some knowledge of the universe beyond bounty hunting (which, despite The Client's once calling it a "complicated profession" is not, narratively, complicated at all). Cara Dune's past as a Shock Trooper for the Rebel Alliance means she has the baked-in hatred of the Empire, similar to the Mandalorian's distrust of all droids. For Cara Dune, kicking in some Zabrak (name of the race of the Darth Maul horned guy she was fighting in the beginning) in the teeth she'll do for fun and profit. Killing Imps? She does that because it's her calling. Remember, she left the New Republic when they tried to downgrade her from Shock Trooper to security guard or policewoman.
This week, we also get more of Kuiil's backstory when he tells Mando and Cara Dune that over the course of three human lifetimes he worked his way out of Imperial servitude after his clan had been full on sold off as slave labor. That patience and calm Kuiil has is further demonstrated as we see him nurse IG-11 back to health after Mando shot him in the head in Chapter 1. Kuiil claims him under New Republic Law, turns IG-11 back on, but instead of programming him, Kuiil goes about teaching the droid like you would teach a sentient person.
Kuiil is also the only person on the team who has heard rumors of The Force, because at one point he worked on a gene farm. Since Kuiil served the Empire for three human lifetimes, that sort of cloning operation, or maybe simply eugenics, could go back all the way to the Clone Wars and the great Clone Army of the Republic. His comment that Cara Dune looks like she could have come straight from the Cytocaves of Nora suggests that female clones, or genetically enhanced troopers, were also in the mix at some point in Star Wars history. The "Cyctocaves of Nora" is a new lore drop. Could it be a Kamino competitor?
Kuiil says, as a former gene farm worker, that Kid Green is "too evolved" and "too ugly" which... is the legacy of Jango Fett That he was... pretty? Are clones good looking? It leads directly into the "Cytocaves of Nora" line and Cara Dune smiles like being farmed from a planet is a compliment. I'm going to say all clones are attractive and all non clones are ugly until Star Wars tells me otherwise. I like the idea that when messing with genes you can't help but slip into all the problems inherent with playing god, and suddenly you're creating something really attractive and good at killing.
Kuiil also notes that Kid Green hasn't aged much, so we are NOT looking at a Kamino type clone with accelerated aging and some type of control built in. In other words, none of our main characters seems programmed by their genetics. And, just in case we need to blow up the debate over whether choice or circumstance dictates your options in life, "Chapter 7" gives us the re-introduction of IG-11.