According to the search results, Trevor Belmont is a character from the Castlevania games and Netflix series. In the Castlevania 3 game, Trevor and Sypha retire after defeating Dracula and marry in secret. However, Trevor is forced back into action in the game Castlevania: Curse of Darkness to investigate a sickness that falls over Wallachia. Trevor teams up with Hector to stop a cult of Dracula heralded by his Devil Forgemaster Isaac. After helping Hector defeat Isaac and prevent him from accessing the Infinite Corridor, Trevor returns to his wife and the two have a child, beginning a bloodline that leads to legendary vampire hunter Simon Belmont, the main character of the original Castlevania video game.

In the Castlevania Netflix series, Trevor Belmont fights Death and seemingly sacrifices himself to save Sypha and Alucard. However, he is saved by the Infinite Corridor and returns to Sypha and Alucard, revealing that Saint Germain put him inside the Corridor to protect him from annihilation. In the end, Trevor, Sypha, and Alucard defeat the Rebis with help from Saint Germain and destroy Death. Trevor decides to face Death alone, deciding that theyre essentially relics of another time and place. In their battle, Trevor proves shockingly adept and even gets some good hits on Death. Eventually, when things seem bleakest, Trevor plunges a dagger that he got in Targoviste straight into the beings head. As Death explodes, Trevor is seemingly wiped from existence. However, he is later revealed to have survived.

In summary, Trevor Belmont survives in the Castlevania games and Netflix series.