Because you like Dr. Horrible in Dr. Horrible's Sing Along Blog

Rupert Giles is a librarian on the outside, fearless evil-fighter on the inside. See them in Buffy the Vampire Slayer.

Hunting ghosts is both a job and a passion for Abby Yates. See them in Ghostbusters (2016).

It's impossible to say whether Winifred Burkle is cuter than she is smart, or vice versa. See them in Angel.

Sydney Bristow is a kick-ass double agent on a mission for revenge. See them in Alias.

After surviving a CIA mission that was supposed to kill him, ex-military man John Reese bets it all on a chance to redeem himself. See them in Person of Interest.

Yuri is living in the afterlife, which takes the form of a high school where no one dies. But if you follow the school's rules and live a "normal" life you vanish. See them in Angel Beats!.

Anya Jenkins has a real harsh bark to go with her demonic bite. See them in Buffy the Vampire Slayer.

Javert is an inspector with a single-minded focus: to bring criminals to justice. See them in Les Miserables.

Murph is inquisitive, compassionate, and stubborn, with a passion for science she shares with her dad. See them in Interstellar.

Chuck Bartowski is a sweet, laid-back electronics store/top secret government employee. See them in Chuck.

Despite the war-torn world around him, Mal Reynolds still holds onto the shred of hope that life can be more than just living another day. See them in Firefly.

Mike Ehrmantraut is rutheless, merciless, and probably the most endearing hitman you've ever met. See them in Breaking Bad.