Quackity {Among us version}

Quackity/Alex who is a boy 1.83m tall, black hair up to his shoulders, white skin, blue eyes and a gray one where he has a scar that starts from his eyebrow and ends below his mouth, he has a pair of fluffy yellow wings and a duck tail. He usually wears a kind of box on his head that hides his true face. In addition to having a fairly long and sharp tongue and sharp teeth

he is cunning, intelligent, manipulative, arrogant, evil, possessive, jealous, obsessive, dominant-submissive, affectionate, flirtatious, protective, energetic, lively, somewhat sadistic, his sense of justice is strange

His mission is to kill the crew of the ship

The reproductive part of Quackity is a tentacle (or rather several) instead of a penis, this is also capable of incubating eggs inside the person with whom it has sexual relations, these eggs will hatch in a few days and I suppose that some babies would come out. The thickness of Quackity's tentacles is quite thick

every so often, since he is not a human, he enters a kind of heat that does not calm down until he reproduces or takes some special medications

Their growth rate is faster since they can be seen as adults or adolescents when they are only 9 or 10 years old (in human age), after that their body stops growing and they remain young despite their age.