Sorry this is so late, hope it still works for you.
Name: Hessta Kerso
Personal: Age- 35
Gender- Male
Species- Yuan-ti
Species: Yuan-ti
General Appearance: Almost completely serpent with two arms and standing around 7 or 8 feet tall. Scale colors range from green to black, sometimes red, and their faces are slightly humanoid but still very snake-like (unblinking eyes, forked tongue, fangs). Most Yuan-ti are not venomous but one subspecies, the Yeshnaks, are highly venomous and are more physically enhanced than other Yuan-ti.
(general Yuan-ti)
Homeworld: The Yuan-ti come from the planet Yantar, a world that seems inhospitable to all except the Yuan-ti. Most of the planet is thick jungle and rocky mountains, but there are also many active volcanoes on its surface.
Culture: The Yuan-ti are ruled by a monarchy from a royal family line that has been unbroken for almost two thousand years. This line is the line of Yantar, the same name as their home planet, and are entirely Yeshnaks, having used their venom and increased strength to stay in control. Most laws boil down to "Don't cross the Royal Family or die." There are no prisons, all crimes are punished by immediate execution no matter the severity and as such, the crime rate is considerably low. When a child of the Royal family reaches 3 years old, they are immediately taught the arts of assassination, stealth, and all forms of combat, making them formidable rulers and often executioners. When dealing with other races, the Yuan-ti rulers have the appearance of kindness and courtesy but everything they do is for their own gain. Rulers of the Yuan-ti have been renowned as having silver tongues and honeyed words that let them manipulate almost all other species and governments, if they wish. They do not use this skill very often, as they have complete and total disdain for other races, not even wishing to conquer them. Combat is highly valued in Yuan-ti society and children have to brave the fiercest jungles on the planet alone and return with a kill to be considered adults. Because of this as well as their willingness to use whatever means necessary to fulfill a goal, Yuan-ti mercenaries are highly sought after and highly skilled. Even thought they are technologically advanced, many Yuan-ti warriors don't use advanced weapons but favor older and, in their eyes, more reliable weapons.
Religious Views: There are legends of ancient Yuan-ti deities but they have not been worshipped in thousands of years. Yuan-ti now believe that religion is nothing but a tool that let other species be manipulated and conquered.
History: For centuries, the Yuan-ti tribes were constantly at war with each other, leading to stunted technological growth until the Yeshnaks, lead by the first Yantar, gathered an army so powerful they nearly wiped all the other Yuan-ti out of existence. But instead of destroying them, Hesstash Yantar decided to bring them under his rule and unite the Yuan-ti. After a century of rebuilding and mistrust, the Yuan-ti finally accepted each other and their new rulers, bringing and unheard of era of peace to the newly named planet of Yantar. After that the planet exploded with technological advancements and new ideas, reaching out into the stars a matter of centuries after they were united. Their first contact with alien species did not go well, it started the first interplanetary war the Yuan-ti had ever conceived of. After decades of bloodshed and ruthless violence, the Yuan-ti were victorious and Maktas Yantar decided that the price was too high and other races too foul to continue conquering the galaxy. Thus, the Yuan-ti helped rebuild the civilization they nearly destroyed and took the stance of diplomacy with all other aliens they encountered, using their intelligence and deceptive charm to make a place for themselves among the shadows of the most powerful governments.
Appearance: Hessta is a huge specimen even for the Yuan-ti. When he stands at his full height he reaches almost 9 feet tall and is very muscular. He weighs over 300 pounds but it is obviously muscle. He has a tiny red tattoo on the back of his neck, but he never lets anyone close enough to see it clearly, but to those who have seen it from a distance, it looks a little like a cobra. His scales are a dark green that looks like black in the right light and his dark grey eyes always glint with cold intelligence.
Apparel: Hessta wears a shirt that is made of a resistant material which can help absorb blows from energy weapons as well as a leather belt with pouches he keeps small trinkets in (ID, money, weapons)
Weaponry: Hessta wields two large scimitars made of a special alloy that gives them extra resilience and strength. The scimitars are engraved with characters in the Yuan-ti language and he never lets them out of his sight. He also carries a single energy pistol that he rarely ever uses.
Other: While Hessta holds the same disdain for other species as the rest of his kind, he does show kindness to other races from time to time.
Starfighter: Hessta's starfighter is of a simple design, only holding four people at maximum. It is heavily armored and he has put many weapons on it but it is also exceptionally fast. Hessta calls it the Shuriken.
Skills/Abilities: Hessta is a very adept fighter and because of his serpent heritage, has very quick reflexes and can heal quickly, shedding his skin if the injury is very severe. He speaks multiple languages and can repair almost any damage that comes to his ship. His greatest strength, due to the dark color of his scales and his silent way of moving, is stealth, being able to go undetected in a variety of situations. His sense of smell is more advanced than most humans and can detect heat using his forked tongue. He can interrogate effectively and knows how to think quickly and decisively in a fight. He has spent many years as an intergalactic mercenary so his natural ruthlessness has been refined as well as his other skills, such as tracking and negotiation.
Word-of-Mouth: Hessta Kerso is a well known name in certain circles, his record as a mercenary is impeccable and impressive. He has done a lot of work for both Strattix Inc. and Blastex Industries, as well as the Federation and the Republic of Corvais, leading to him having quite a bit of money at a given time. Most other mercenaries know that if he is on a job, you're better off staying as far out of his way as you can. No one knows about his past before he became a mercenary at age 20 and he keeps his life on Yantar a very close secret. He recently did a job for Gortex and the word on the street is that it did not end well for Hessta.