Because you like Captain Haddock in The Adventures of Tintin

Yugi Moto is a gentle soul whose determination and talent make him a formidable opponent. See them in Yu-Gi-Oh! .

Ethan Hunt's mission, should he chose to accept it, is to save the world from impossible threats. See them in Mission: Impossible.

Orphan Bruce Wayne has a tortured soul, but he's trying his best to weed out corruption. See them in DC Extended Universe.

With an A.I. as loyal and witty as Cortana, who needs humans? See them in Halo.

He tells you everything you need to know: "I. Am. Groot." See them in Marvel Cinematic Universe.

Stranded on Mars, Mark Watney is armed with quick wits, an electronic diary, disco music, and an undying resolve to make it back. See them in The Martian.

Daxter is half otter, half weasel, all snark. See them in Jak and Daxter.

A super-soldier, Master Chief might be more machine than man. And for humanity's sake, thank God. See them in Halo.

An undercover DEA agent, Max Payne is too focused on avenging the past to plan for the future. See them in Max Payne.

Steve Rogers is a good soldier. But above all, he's a good man. See them in Marvel Cinematic Universe.

Dr. Gordon Freeman is a brilliant physicist is a quiet hero. And given all the violent aliens, he better be. See them in Half-Life.

Thor is Asgardian nobility who is tickled by how us earthlings live. See them in Marvel Cinematic Universe.