Because you like Mrs. Hughes in Downton Abbey
James Wilson is a compassionate doctor who willingly plays the sidekick. See them in House M.D..
All the world's a stage, and Missy Piggy's never one to give up the spotlight. See them in The Muppet Movie.
George Weasley likes to invent quirky joke products, play Quidditch, and cause poor Mrs. Weasley a lot of anxiety. See them in Harry Potter Series.
Jane Foster is an astrophysicist who suspects the colors in the sky may be a portal to another world. See them in Marvel Cinematic Universe.
Harry Osborn is the privileged son of Oscorp's founder with a goblin-sized chip on his shoulder. See them in Marvel Cinematic Universe.
Diana Prince is using a truth-telling lasso and super-strength to make Earth a little more like Paradise. See them in DC Extended Universe.
Donkey is proof that if you're annoying enough you can change the world; he's the reason that his friend Shrek does, well, anything. See them in Shrek.
Jim Hopper is a weary and beaten down police officer who numbs his pain through beer, pills, and cigarettes. See them in Stranger Things.
Morticia Addams hates anything bright and cheery and loves all things ghoulish, ghastly, and violent. See them in The Addams Family.
A daring hacker, Trinity is one of the few rebels who escaped the Matrix, a simulation in which most of humanity is enslaved. See them in The Matrix.
A brilliant "extractor," Dom Cobb has spent the past few years running from the authorities and his inner demons. See them in Inception.