Raphael (Teenage Mutant Ninja Turtles 2012) - They both have extremely short tempers and they are very hotheaded. They are also both the second oldest kids of their families and they're both the muscles and the brawns of their siblings. They are also sarcastic, they makes of fun their siblings and often coming up with very smart-mouthed remarks. Despite this however, they both have soft sides that they don't wanna admit they are very good people loves their families dearly. They are protective of them and they'll do anything to protect them at all cost.
Buttercup (Powerpuff Girls 1998) - They are the tough ones of the siblings and they are easily enraged. Sometimes this, and their aggression, get the better of them, making them a little reckless and stubborn (but they overcame it). They both have enough control so as to not go "overboard" on innocent people, no matter how trivial the offense.
Loona (Helluva Boss) - They are both cynical and choleric girls .
Megan Carrasco (Ultravitam Sunt) - Main Inspiration, Cassie is an intelligent and strong girl. She likes to exercise and and experience new things. But she usually has very little patience for everything around her, so she almost always looks angry or serious. She is also a boxer
Duncan (Total Drama) - 2nd main inspiration, Cassie is a bad girl who loves to cause trouble and breaks the rules, however she does a have soft side and a kind heart
