Trevor Belmont was the wife of Sypha and the father of Simon Belmont. Too, he was the son that Gabriel Belmont never knew he had. When he was a young boy, Trevor was taken away from his mother, Marie, by elder members of the Brotherhood of Light, who were aware of a dire prophecy that foresaw the eventual death and unholy resurrection of Gabriel. In order to protect him from a potentially new Dark Lord, the Brotherhood snatched Trevor from his cradle and raised him in secret; he was thus trained from an early age to become the best and brightest warrior in the order, unaware of his true lineage. He was eventually made aware of his troubled origin and wondered why the Brotherhood waited so long to tell him the truth. While he had suspicions about their motivation, he was nevertheless intent on destroying his cursed father for the purpose of protecting his family's honor--more so their very lives--and avenging his mother's death, on which he blamed Gabriel. As he prepared to embark on his quest, he entrusted Simon with an amulet that he had carried with him since he was a young boy; he claimed it was a fragment taken from a magical mirror that was capable of showing past and true fate. Though it never showed him anything, he hoped it would one day guide Simon. He had one final request for his wife: Should he not return by dawn, she were to take Simon and leave the village, escaping to the nearby woods.

Trevor traveled toward Dracula's habitat, the former Bernhard castle. He breach the connected unholy church, where he discovered a new boomerang sub-weapon; he put this new tool to use, shredding to pieces a swarm of bats that crashed the party, and thereafter earned access to the catacombs that spilled out onto the castle's bridge, where he was assaulted by a hunchback-controlled Executioner. After disposing of the hooded terror, he arrived at the main entrance, where stood the mysterious Lost Soul, who denied him entry, stating, "You cannot pass yet, Trevor." Taking a more roundabout path, he claimed a Light Magic Medallion and descended to the crypt, whose most terrifying occupant engaged him in a struggle so epic that it tore through the castle's foundation and crashed open the castle's main entrance, which was convenient for Trevor. Once inside, he was again greeted by the Lost Soul, who explained how it knew what it knew--that it existed for the purpose of making sure that everything happened as it was supposed to happen. Trevor would not be able to complete his quest, it warned, and his fate had already been sealed; nothing could be done to change it, and his wife and child would suffer from his inevitable failure. Unimpressed, the incredulous Trevor angrily drew his whip and struck the Lost Soul in the jaw, shattering the bottom of its mask while robbing it of speech. Now undeterred, Trevor recovered a Dark Magic Medallion and a Stopwatch, his growing magical propensity allowing him further castle access plus the means to upgrade his weapon to the Improved Combat Cross.

Putting his new tools and abilities to use, he endured a series of perilous trials and finally arrived at the castle keep. Trevor burst into the throne room, demanding that Dracula reveal himself. The former Gabriel suddenly materialized, unimpressed by Trevor's hubris and dismissive of his skills. With vengeance his only ally, Trevor battled the accursed Dark Lord in yet another epic encounter. And although Trevor was more than a match for the former Brotherhood prodigy, he was ultimately impaled by his own weapon as result of the pair's violent fall from high above the throne room's pavement. As he lay there, dying, Trevor watched as the Lost Soul disappeared into the Mirror of Fate; he was then for the first time shown a vision by the "magic mirror," of which he had once spoken, and finally understood his true destiny. He had fought against his fate even though it was in vain, whereas Dracula had accepted his scripting. He expressed pity for Dracula, who he acknowledged as "father." As his last act, he pointed toward the Mirror of Fate, directing toward it the suddenly confused Dracula, who was distressed to learn, via another vision, that he just killed his own son. Attempting to rectify his error, Dracula slashed his wrist and emptied the bloody contents into Trevor's gullet, granting him not a healthy recovery but an eventual rebirth in a new form. His corpse was entombed in ornate coffin, whose cover had engraved on it the name of its tenant: "Alucard."