Because you like Amy Dunne in Gone Girl
Misaki Nakahara is keeping tabs on her newest project: recluse Tatsuhiro Sato. See them in Welcome to the NHK.
Eren Jaeger will erase the Titans from this world until not a single one remains. See them in Attack on Titan.
Knuckles the Echidna is a 16-year-old red echidna (aka a spiny anteater) and guardian of the ancient Master Emerald. See them in Sonic the Hedgehog.
For Jack Pearson, the best thing about having triplets is giving three times the love. See them in This Is Us.
Boomerang is equally skilled at tossing boomerangs and tossing back beers. See them in DC Extended Universe.
You wouldn't know it by looking at her, but beneath Sheila Jackson's sweet, motherly exterior lies a sex addict. See them in Shameless.
Nozomu's name translates to despair, which is fitting for him. See them in Sayonara, Zetsubo Sensei.
Wheatley's got an endless supply of bad ideas that he wants to share. See them in Portal Series.
Waylon Smithers would do anything for his boss, and would love to do a few things *to* him. See them in The Simpsons.
Carolos has perfect hair, a lab coat, and a constant readiness to do science. See them in Welcome to Night Vale.