Because you like Tatsuhiro Sato in Welcome to the NHK
Academics weren't his strong suit. Luckily, Jesse Pinkman's street smarts are a cut above the rest. See them in Breaking Bad.
Wolverine is a hot-blooded Canadian with an adamantium skeleton who's the best at what he does. See them in X-Men Series.
Leonidas is not the kind of king who merely gives orders; rather, he's out on the battlefield fighting alongside his men. See them in 300.
While Jay Gatsby doesn't necessarily like to attend his parties, he knows how to throw a world-class bash. See them in The Great Gatsby.
Don't worry about this forensic scientist offing you unless you're a serial killer yourself. (You're not, right? Just checking.) See them in Dexter.
Rhodes has to trust his conscience to guide him through a political struggle that could change the very shape of modern warfare. See them in Marvel Cinematic Universe.
The Terminator is an emotionless killing machine who won't stop until he's changed the future. See them in The Terminator.
With an incredible ability to fake a smile, Selina Meyer is a gifted politician serving as Vice President. And maybe one day the President will actually call her. See them in Veep.
Don't mess with Mickey Milkovich unless you want to see the wrong side of one of his many guns. See them in Shameless.
Alex Danvers is a brilliant engineer tasked with alien threats, and one of those aliens is her adopted sister Supergirl. See them in Supergirl.