Because you like Clara Oswald in Doctor Who
David Rossi may chase serial killers for a living, but he's more interested in what wine pairs well with tonight's parmigiana. See them in Criminal Minds.
Cinderella will sacrifice herself to keep her family's memory alive. See them in Cinderella (Live Action).
Peter Venkman's "research" projects are designed to get undergraduate students to sleep with him. Though it turns out he can bust ghosts. See them in Ghostbusters.
Tina Cohen-Chang is a shy loner who becomes a fierce performer on stage. See them in Glee.
Arwen has to choose between a life of loneliness or love and inevitible death, both rather unfortunate options. See them in The Lord of the Rings.
A singing nanny, Mary Poppins is practically perfect in every way. See them in Mary Poppins.
Cisco Ramon is a proud, enthusiastic member of a superhero support team. See them in DC Extended Universe.
Chuck Bartowski is a sweet, laid-back electronics store/top secret government employee. See them in Chuck.
April Kepner is an excellent surgeon, but outside of the operating room, she's more anxious than most. See them in Grey's Anatomy.
Milo Thatch is an enthusiastic researcher without cynicism. See them in Atlantis: The Lost Empire.
Remy Hadley is a closed book—a cynical, super-smart closed book. See them in House M.D..