Because you like Jan Brady in The Brady Bunch
Harrison Wells is a brilliant scientist full of secrets. See them in DC Extended Universe.
Robin Scherbatsky is a former teen pop star who loves dogs and is scared of relationships. See them in How I Met Your Mother.
Edmund Pevensie isn't a bad person, but he did sell his siblings out for a tin of Turkish Delight. See them in The Chronicles of Narnia.
Luke Danes will serve you coffee and always be there for you to help out. See them in Gilmore Girls.
Hawkeye Pierce is a Devil-may-care Army doc who'd have the Devil laughing and drinking in five minutes flat. See them in M*A*S*H.
C is for cookie, and that's more than good enough for him. See them in Sesame Street.
Burton Guster is a level-headed investigator with a "Super Sniffer" nose. See them in Psych.
Sookie St. James is a klutzy and perfectionist chef who's always there for her friends. See them in Gilmore Girls.
Blaine Anderson is a put-together prep school boy with the voice of an angel. See them in Glee.
Sylar's victims are found all over the country, many with their brains removed. See them in Heroes.