Because you like Madame Vastra in Doctor Who
Spyro the Dragon loves getting into trouble around the Dragon Realms. See them in Spyro the Dragon.
Aldo Raine is in the killing Nazi business. And as he says, business is a-boomin'. See them in Inglourious Basterds.
The only constant in Night Vale is Cecil's hypnotic voice. See them in Welcome to Night Vale.
Marinette Dupain-Cheng is a shy teenage girl, fashion designer, and superhero. See them in Miraculous: Tales of Ladybug & Cat Noir.
NiGHTS is a powerful but childlike spirit who hates being told what to do. See them in NiGHTS into Dreams.
Newt Scamander is more comfortable with animals than people, even if the animals are super-dangerous magical creatures. See them in Fantastic Beasts and Where To Find Them.
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.
April Kepner is an excellent surgeon, but outside of the operating room, she's more anxious than most. See them in Grey's Anatomy.
The brilliant Mona Vanderwaal is proof that undergoing an "extreme makeover" isn't always a good thing. See them in Pretty Little Liars.
Clarice Starling is patiently working with one serial killer to stop another. See them in The Silence of the Lambs.
Erlich Bachman is an overconfident wannabe mentor blowing all types of smoke around the tech industry. See them in Silicon Valley.