Because you like Sam in Sam & Max

Meat Boy tenaciously throws himself into danger, and when he fails, he immediately gets back up and tries again. See them in Super Meat Boy.

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.

Ahsoka Tano hopes to be a very powerful and knowledgeable Jedi one day. See them in The Clone Wars.

A smart, spunky, and incredibly skilled gamer, Art3mis has a revolutionary spirit. See them in Ready Player One.

A gifted detective, Rust Cohle is as dark and twisty as any murderer he chases. See them in True Detective Season 1.

Let's just say Sheldon Oberon is having an out-of-body experience like no other. See them in Jumanji.

Fate has forced Amuro into the terrors of war, and he must use the Gundam and all of its power if he is to make it out alive. See them in Mobile Suit Gundam Series.

Boomerang is equally skilled at tossing boomerangs and tossing back beers. See them in DC Extended Universe.

Though he may be blind, Chirrut Imwe sees the power of the force more than most. See them in Rogue One.

Carolos has perfect hair, a lab coat, and a constant readiness to do science. See them in Welcome to Night Vale.

Anywhere there's adventure, Jaskier is there to write a catchy song about it. See them in The Witcher.