Possibilities: A Wings of Fire FanAnimated Series
Nathan01 for Crustacean
When around strangers, Crustacean acts a little more likable and has a fake sort of niceness in order not to offend a future client. But overall, he's not great with social interaction. He's quieter among peers and would reveal his dark sense of humor. He can sound intimidating and slightly creepy. He sounds similar to the Chesire Cat in Tim Burton's Alice in Wonderland.
https://www.youtube.com/watch?v=TFqjA2aOe_I&ab_channel=iFoxfilms
"Hello there, small child. Wanna learn a dangerous knife trick?"
"Is that an antique blade made with a real IceWing talon?! Those were banned centuries ago for being 'unethical,' which I laugh at in a mocking tone."
"Well...my whole career choice is kinda centered around illegal stuff, you're gonna have to be a little more specific than that."