Because you like Amy Pond in Doctor Who
Andy Bernard is a preppy Cornell grad who's very likely to break into an acapella performance. See them in The Office.
With her mastery of martial arts and her prodigious building skills, Wyldstyle projects an air of invincibility. But she's not bulletproof. See them in The Lego Movie.
Donkey is proof that if you're annoying enough you can change the world; he's the reason that his friend Shrek does, well, anything. See them in Shrek.
Will Turner is an earnest, lovelorn blacksmith's assistant with an adventurous spirit. See them in Pirates of the Caribbean: the Curse of the Black Pearl.
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.
Cat Grant gets what she wants: a piping hot latte or an interview with Supergirl. See them in Supergirl.
There must be quite a lot of fellows who haven't got anybody to bring them tea in the morning. Bertie Wooster is lucky to have his valet, Jeeves. See them in Jeeves and Wooster.
Stubborn, impulsive, and fun-loving, Hallie Parker is not afraid to devise some schemes to bring her family together. See them in The Parent Trap.
Donna Pinciotti is strong, independent, and empathetic. No one messes with her. See them in That '70s Show.
Robin Scherbatsky is a former teen pop star who loves dogs and is scared of relationships. See them in How I Met Your Mother.
