Because you like Jane Smith in Mr. & Mrs. Smith
Rick Sanchez is a gruff, alcoholic mad scientist, with the emphasis on "mad." See them in Rick and Morty.
Donna is boisterous and spunky traveller of the TARDIS, exploring worlds beyond the simple mundane enterprises of Earth. See them in Doctor Who.
Jyn Erso is a rebellious criminal tasked with stealing the blueprint to the Death Star to find its fatal flaw before it destroys the planet. See them in Rogue One.
It turns out Dracula's son Alucard has some pretty severe daddy issues. See them in Castlevania.
On the bright side, Mindy Lahiri is always willing to volunteer her opinion. On the dark side, this doc’s prescriptions can be misguided and shallow. See them in The Mindy Project.
Gregor Samsa is an ordinary man in an abnormal predicament. See them in The Metamorphosis.
Chandler Bings keeps his friends on their toes with his cutting wit, all the while trying to discover his own place in life. Could he BE any funnier? See them in Friends.
Hawkeye is most comfortable perched above the action, keeping an eye on everything and using a well-timed arrow to save the day. See them in Marvel Cinematic Universe.
Severus Snape is a misanthropic potions teacher with a vindictive streak. See them in Harry Potter Series.
A tough and compassionate loner, Emma Swan just might be the key to saving an entire fairy tale world. See them in Once Upon a Time.
Korra is stubborn, outgoing, and faced with huge responsibilities she might not be ready for. See them in The Legend of Korra.
Philip J. Fry accidentally cryogenically froze himself for a millennium. See them in Futurama.