Because you like Mega Man in Mega Man
Wheatley's got an endless supply of bad ideas that he wants to share. See them in Portal Series.
Small and curious, he is a 50-year-old baby of a peculiar green species with unusual abilities. See them in The Mandalorian.
Just call Jeff Lebowski The Dude. Or His Dudeness, Duder, or El Duderino if you're not into that whole brevity thing. See them in The Big Lebowski.
With her consciousness so easily shifted between bodies, Motoko Kusanagi is left unsure of who or what she really is. See them in Ghost in the Shell.
This lab mouse has one thing on his huge brain: trying to take over the world on a nightly basis. See them in Pinky and the Brain.
Spike Spiegel is a bounty-hunter with a laidback style and lightning-quick moves. See them in Cowboy Bebop.
The fearless bodyguard of Rick Flag, Katana will ruthlessly kill her enemies, trapping their souls in her sword. See them in DC Extended Universe.
When the safety of Hyrule is at stake, Princess Zelda does not hesitate to sacrifice herself for the good of the land. See them in The Legend of Zelda.
Joel is a hardened, jaded survivor who keeps finding things to fight for. See them in The Last of Us.
V is a violent anarchist with literally nothing left to lose. But, he might have a point. See them in V for Vendetta.
An infamous vampire, Alucard is a one-man killing machine with a philosophical side. See them in Hellsing.