Because you like Yoshi in Super Mario Bros.
Aiden Pearce is a hacker who knows how dangerous the world can be, both online and off. See them in Watch Dogs.
Raz is a 10-year-old boy who mostly stays in his own head, which makes sense since that's where he is strongest. See them in Psychonauts.
Greenpeace? No, this brave eco-terrorist is waging Greenwar. See them in Final Fantasy Series.
A scary monster on the outside, James P. Sullivan is really a softie on the inside. See them in Monsters, Inc..
A resourceful ship systems engineer, Isaac Clarke does his best to batttle the infection spreading across space. See them in Dead Space.
World domination and Superman's demise are next on Lex Luthor's to-do list. See them in DC Extended Universe.
Altair Ibn-La'Ahad is as much a philosopher and detective as he is a killer. He takes nothing at face value and continually searches for deeper truths. See them in Assassin's Creed Series.
A powerful dragon-hunting warrior, Dovahkiin is destined for great things. See them in The Elder Scrolls V: Skyrim.
Optimus Prime is a shapeshifting sentient robot leading a team of robots to stop evil from taking over. See them in Transformers.
Phoenix Wright is an easygoing defense attorney who is rarely defensive. See them in Ace Attorney Series .
Basically a giant pillow come to life, Baymax is a medical robot created for the sole purpose of helping people. See them in Big Hero 6.
It turns out Dracula's son Alucard has some pretty severe daddy issues. See them in Castlevania.