talk about your favorite oc, if you have one
I have a couple favorites, like 3 immediately pop into my mind when I see "favorite OC," but at the end of the day my favorite of them all is definitely Cosmo Leonard.
She's quite literally one of my other characters (Nova)'s childhood imaginary friend based on her favorite doll who grew up with her, being invisible to anyone else but her, until Nova was able to find a way to make her a real live person some time around their mid-to-late teens. Now, Nova has ADHD, and because Cosmo was imagined by somebody with ADHD, she also has ADHD. And because she spent all of her formative years being invisible and never really experiencing any consequences to her actions and never being told no by an authority figure before in her life, Cosmo really, really doesn't know how to not indulge in her more impulsive thoughts, or have much of a filter when speaking to people because she doesn't have experience with speaking to anybody but Nova! So, as a result she has a very chaotic, impulsive, and sort of childish personality. She's here to have fun and experience things and live life to the fullest!! But that brings up some problems, because in her constant impulsiveness, she sometimes does things that end up hurting the people around her who she cares about, and since she's not used to consequences, it's hard for her to take that into consideration before she acts. And it's not that she doesn't care - she actually cares a LOT! It really really hurts her when she hurts others, and she wants to do better, it's just hard for her.
Addditionally, because Cosmo spent so long not being a "real person," just a concept or a literal plush doll, she sometimes experiences some dissociation and disconnect with the fact that she is in fact an actual person now, and if it gets exceptionally bad and distressing, she ocassionally reverts back to her doll form as a sort of rest period to just take a break from Existing for a bit. One of the biggest triggers of this is actually the aformentioned instances of accidentally upsetting and hurting people, because it can very easily lead to a thought spiral of "I did a bad thing," -> "I'm a bad person," -> "I'm bad at being a person," -> "People were better off when I wasn't a person," -> "I shouldn't be a person."
Despite this negativity and her ocassional mistakes, though, like I said she is genuinely a very kind, caring, fun-loving person who just wants to get the best out of life with the people she loves, and she is actively trying with those people to be better and more conscientious with her actions.
Bonus Fun Facts for if you've read this far:
She's in a band with Nova, where she usually plays either the lead guitar and/or sings, or plays drums when Nova or Matthew are singing.
Her hair is naturally purple with red highlights. Because imaginary friend logic.
She really likes cooking and BAKING especially. Her favorite thing to make is chocolate chip cookies.
She is dating Nova's little brother Ori and I'm obsessed with their relationship.
Here's her playlist which I've specifically curated to have a sort of flow between states of mania and depression bc she's also canonically bipolar.