Because you like Mrs. Hudson in Sherlock
A librarian and aspiring Egyptologist, Evie O'Connell would rather have her own adventures than just read about them. See them in The Mummy.
A brilliant graduate student in Italy for "research," Oliver has other things on his mind: flirting, swimming, and dancing. See them in Call Me by Your Name.
Remy could be a five star Michelin chef, the only problem is that he is quite literally a rat. See them in Ratatouille.
Galina Reznikov is the head chef of prison, cooking up meals as well as storms on anyone who dares to cross her; even the guards are terrified of her. See them in Orange Is The New Black.
Jo Wilson is an accomplished doctor who's getting over her past. See them in Grey's Anatomy.
Moe Szyslak is the crabby owner of the grimiest bar in Springfield. See them in The Simpsons.
Although Theon Greyjoy is treated well, he's still essentially a hostage. And that isn't so easy for him to forgive. See them in Game of Thrones.
Sydney Bristow is a kick-ass double agent on a mission for revenge. See them in Alias.
Donna Pinciotti is strong, independent, and empathetic. No one messes with her. See them in That '70s Show.