Because you like Boomerang in DC Extended Universe

There's no obstacle too great for this charismatic treasure-hunter. See them in Uncharted.

A superpowered test subject, Scarlet Witch can manipulate other people's thoughts and force them to confront their worst fears. See them in Marvel Cinematic Universe.

If you hang out with Bender in cool dive bars in 31st century New York, make sure you're on his "Do Not Kill" list. See them in Futurama.

As a scaring Assistant, Mike Wazowski frightens children to collect their screams to be used as a power supply for the city. See them in Monsters, Inc..

Emmet Brickowski is so upbeat it's not even human. Everything is AWESOME! See them in The Lego Movie.

Number Five is a 58-year-old man trapped in his 13-year-old body. See them in The Umbrella Academy.

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.

Stewie Griffin is just your average evil-genius, talking, sociopathic baby. See them in Family Guy.

Stuck in space, Ryan Stone will either make it back to Earth and have one hell of a story to tell. Or she will burn into the ether. See them in Gravity.

Jade Jade Harley might not be the best at reading social cues, but her bravery and selflessness means she's a great friend to have. See them in Homestuck.

Arthur Dent is an incredibly normal man on an incredibly abnormal adventure. See them in The Hitchhiker's Guide to the Galaxy.

Dr. Gordon Freeman is a brilliant physicist is a quiet hero. And given all the violent aliens, he better be. See them in Half-Life.