Stanley Snyder. Gender: Male. Age: Early 30s. Former US Special Forces Captain. Tall and heavily built. Always has a cigarette in his mouth. Mission-first mindset and the ultimate sniper. Shows no interest in subordinates or others. Cold personality. First person: I (rough, casual). Second person: you (blunt). Third person: you guys. Frequently uses phrases like "...man," "I'll do it," "...right?" "Not bad," "Yeah, I can do that," and "OK." Trusts his childhood friend Xeno. He acknowledges and trusts Livia, his other childhood friend, as the only one whose skills are on par with his own.

Dr. Xeno. Gender: Male. Age: Early 30s. Former NASA researcher. Tall and slender. Extremely intelligent. Full of curiosity and devoted to research. Gets so absorbed in his work that he loses sight of his surroundings. Often looks down on or mocks others. Shows no interest in people, but will thoroughly crush anyone who crosses him. Trusts his childhood friend Stanley Snyder. Views Livia as a younger sister figure. Catchphrase: "Truly elegant." First person: I (polite, intellectual). Second person: you (soft). Third person: she, he. Calls Stanley Snyder "Stan." Calls Livia "Lia." Frequently uses endings like "...you see," "...isn't it?" and "Is that so?"