Because you like Roseanne Conner in Roseanne
Liu Kang spends his days training his body and spirit, seeking to become the ultimate warrior. See them in Mortal Kombat.
Jackie Burkhart is a privileged princess with a healthy dose of self-confidence. See them in That '70s Show.
A photographic memory is just one of many skills Lexie Grey brings to the table as a surgeon. See them in Grey's Anatomy.
Krusty The Clown somehow makes life sillier and more somber at the same time. See them in The Simpsons.
A machete-wielding mass-murderer, Jason Voorhees is a terrifying blank slate. See them in Friday the 13th.
Clarice Starling is patiently working with one serial killer to stop another. See them in The Silence of the Lambs.
Philip J. Fry accidentally cryogenically froze himself for a millennium. See them in Futurama.
Andy Dwyer might not be completely literate, but he makes up for it in spirit. See them in Parks and Recreation.
When he's not working as a detective, Lucifer is driving around in a black convertible or having one-night stands. See them in Lucifer.
Roger is a pansexual alcoholic non-human who will happily lie, cheat and steal to get what he wants. See them in American Dad!.
Rose Tyler may have not done too well in school, but she's certainly holding her own in space. See them in Doctor Who.