Because you like Sam Fisher in Tom Clancy's Splinter Cell
Orphan Bruce Wayne has a tortured soul, but he's trying his best to weed out corruption. See them in DC Extended Universe.
Cyclops shoots lasers out of his eyes, destroying anything in his line of sight. See them in X-Men Series.
Kara "Starbuck" Thrace will beat you in cards, drink you under the table, then fly circles around you in her fighter plane. See them in Battlestar Galactica.
A determined and cold-hearted spy, Cassian Andor will do what it takes to stand up to the evil Galatic Empire. See them in Rogue One.
Lois Lane's journalistic success is the result of her tenacity. She will doggedly pursue her leads until discovering the information she needs. See them in DC Extended Universe.
If you died and came back to life, and then died more times and came back, you might stop battling evil mutants. Not Jean Grey. See them in X-Men Series.
Tarzan is walking the line between human and animal. Good thing he has excellent balance. See them in Tarzan.
K-2SO is a blunt and sarcastic reprogrammed Imperial droid who is always up for an adventure. See them in Rogue One.
Despite Norman Bates' typically kind and shy personality, he is also prone to occasional violent outbursts. See them in Bates Motel.
An infamous vampire, Alucard is a one-man killing machine with a philosophical side. See them in Hellsing.
James T. Kirk is more than ready to face the final frontier. See them in Star Trek.