Sam

Sam, also known as The Last Key, Code Name: Mr. Game & Watch, and Funky Red, is the brother of Tiffany and Brittany Williamson (despite not sharing their last name) and a reoccurring protagonist in Chosen. He is the second person we ever meet in Chosen, the first being Brittany. Armed with an inexplicable amount of power, Sam, curiously, almost never utilizes his power, and instead provides more of an overwatch and Mission Support role for the two Williamsons.

Personality
Sam is definitely among one of the most laidback people in Chosen's canon. He takes all of the crazy, convoluted shenanigans in stride, rarely taking the situation too seriously. Very little genuinely seems to deter him or unsettle him. He has a huge advantage over most characters, in that he has access to a large amount of powers and information - however, he chooses to use his mysterious omnipotence to help out his sisters and the Revolution, rarely stepping in to show off his skills in battle unless he absolutely needs to. This might be because he doesn't want to steal his sisters' thunder, or perhaps he's simply lazy.

He is a constant source of support and aid for his sisters, both practically (like sending them to the new world of Mercy when they needed it most), and emotionally. It's also been shown that he has a decently close, brotherly relationship with a lot of the revolutionaries, in particular Salia, Halos, and Viola. It's implied he was the one that properly introduced Halos to the Revolution, much like how Sam was the one that introduced Brittany and Tiffany to the Revolution and their roles as the Chosen Ones to begin with.

Sam is a creative soul - he shares Viola's passion for music, Salia's love for photography & film, Brittany & Tiffany's love for writing & drawing, and has shown an affinity for video games, cooking, and fashion. His passion for music and media seems to be very deep; he likes practically all genres, styles, and facets of music, whether they be popular culture or obscure and hipsterish as hell, and his deep knowledge and understanding of media tropes makes him perpetually aware of where the story might head next. Either that, or he has a tentative connection to the Narrator. It's been widely theorized that Sam may be the Narrator, which seems to explain his omnipotence and omniscience.

His emotions are perhaps among the most indecipherable of the main protagonists, barring maybe Caesar or Brittany. It's difficult to tell how hard tragedies hit him because of his almost otherworldly calm. He keeps a lot of things close to his chest, for better or for worse. But one thing that's always been evident is his deep love for his sisters and his deep love for his friends.