Based on the personality traits you've described—rude, talkative, mean, smart, sassy, nosy, moody, confrontational, confident, assertive, stubborn, sarcastic, and occasionally melancholic—it sounds like he would align well with the character of Springtrap from the Five Nights at Freddy's series.
Reasons for the fit:
- Confrontational and Assertive: Springtrap is known for being intrusive and can be confrontational in the horror elements of the game.
- Rude and Sarcastic: His personality can be interpreted as having a darker, more sardonic edge, which matches your description of being rude and sarcastic.
- Smart and Opinionated: Springtrap is cunning and has a complex backstory that showcases intelligence and depth.
- Moody and Melancholic: His backstory includes themes of regret and sadness, which reflects the melancholic aspect of the personality provided.
- Stubborn and Confident: The character’s determination and confidence in its actions, even in the face of danger, resonates with stubbornness and assertiveness.
Overall, Springtrap's combination of dark wit and underlying sorrow would make him a fitting representation of the persona you've outlined.