Xarus is a character appearing in American comic books published by Marvel Comics. He was created by Vic Carrabotta and first appeared in Mystic #17 (November 1952).

Xarus is the son of Dracula. Dissatisfied with Dracula's leadership, Xarus formed a secret alliance with the leaders of various vampire sects to overthrow his father. Their coup was successful and Xarus and his allies beheaded Dracula.

His allies in Mystikos developed devices that neutralize the harmful light frequencies to which vampires are vulnerable. Xarus saw an opportunity to use these devices to establish a stronger, more dominant position for vampires in the world. He distributed them to his allies, who launched a raid on Krieger Sect's fortress, eliminating their senior leadership. Xarus instructed the Claw Sect to hold off on declaring loyalty to him, allowing them to remain neutral and open to potential traitors seeking an alliance, including his brother Janus and the peaceful Anchorite Sect.

After the Siren Sect's attempted betrayal, Xarus surprisingly spared their leader, Alyssa, allowing her to live and continue serving him. However, Alyssa betrayed him again by giving Janus one of the light-deflecting pendants, helping him escape after the Claw Sect had turned on Xarus. Surrounded by a small army of vampires wearing the pendants, Xarus was declared Lord of the Vampires.

Now with greater power, Xarus set his sights on world domination. He planned to convert all mutants in San Francisco into vampires, starting with infecting Jubilee to draw in her fellow X-Men. Wolverine was the first to take the bait, quickly converted with no resistance from his healing factor.

Xarus’ actions against mutantkind caught the attention of Cyclops, who reached out to him directly. Xarus tried to persuade Cyclops to join forces, arguing that both their kinds had been mistreated by humanity. Cyclops firmly rejected the offer, exactly as Xarus had anticipated. With this response, Xarus moved forward with his assault on Utopia. However, the X-Men and Atlanteans were prepared. They revealed that Wolverine’s healing factor had been deactivated before he could revert to his human form, and Xarus watched in disbelief as his entire task force was destroyed. Though he didn’t have time to regroup for another attack, Xarus was determined to defeat the X-Men. Just then, Dracula made his return, resurrected by the X-Men. Xarus attempted to rally his forces to stand against his father, but found no support, forcing him to fight alone. In the end, Dracula exacted revenge, ripping off Xarus' head and killing him.

Xarus would later return from the dead and pose as the Shadow General. He obtained a fragment of Man-Thing and grew it into Boy-Thing.

The X-Cutioner is an alias used by two fictional characters appearing in Marvel Comics.