Because you like Artie Abrams in Glee
Ben Barber is ready to show you that he's twice the man you think he is. See them in Ride Along.
Charles Xavier is a telepath who believes mutants and humans are both good at heart and can live in harmony. See them in X-Men Series.
Everyone Barney Stinson knows is getting married or pregnant. But he's just getting more awesome. See them in How I Met Your Mother.
Yukiteru is a reclusive observer who would rather watch life go by than participate in it. See them in The Future Diary.
Aang is already a master airbender and once he learns to manipulate water, earth, and fire, he'll be truly unbeatable. See them in Avatar: The Last Airbender.
Armin Arlert was wrong. This world hasn't become hell; it's been hell. He just couldn't see it before. See them in Attack on Titan.
Severus Snape is a misanthropic potions teacher with a vindictive streak. See them in Harry Potter Series.
His elfin self-confidence can border on pretension, but Legolas Greenleaf is a fearsome fighter and a loyal friend. See them in The Lord of the Rings.
Francis Freeman may be impervious to pain, but he sure knows how to inflict it. See them in Deadpool.
The son of Death has an obsession with perfection and symmetry. See them in Soul Eater.
Phil Coulson is a deadly field agent with the demeanor of a friendly dad. See them in Marvel Cinematic Universe.
When the going gets tough, Rick Grimes gets tougher. It's a very useful trait when the world goes to hell. See them in The Walking Dead.