Because you like Marshall Eriksen in How I Met Your Mother

Fiona Gallagher wants to be able to give her siblings everything that they deserve because her parents aren't going to do it. See them in Shameless.

Major Marquis Warren is a talkative, sharp-eyed, and cold-hearted Civil War soldier-turned-bounty hunter. See them in The Hateful Eight.

We're all puppets. Dr. Manhattan is just a puppet who can see the strings. See them in Watchmen.

Bedside manner is for chumps, not the brilliant Dr. Gregory House. See them in House M.D..

A 100-plus-year-old who looks like a dreamy teenager, Edward Cullen warns girls to avoid him, which makes them want him even more. See them in Twilight.

Shana is a red-haired warrior with a black-and-white worldview. See them in Shakugan no Shana.

An aristocrat-turned-tomb-raider, Lara Croft does her best thinking while plunging off cliffs. See them in Lara Croft: Tomb Raider.

Ratchet is a shoot-first, ask-questions-later, and then-shoot-again kind of lombax. See them in Ratchet & Clank.

After Otto Octavius' accident, he becomes fixated on finishing the reactor at any cost. See them in Marvel Cinematic Universe.

Betty Cooper seems like a sweet girl, but she also has a dark side and can go beyond what's safe or sane. See them in Archie Comics.

It is a truth universally acknowledged that Elizabeth Bennet doesn't suffer fools or prideful men. See them in Pride & Prejudice.

World domination and Superman's demise are next on Lex Luthor's to-do list. See them in DC Extended Universe.