Ivanovic is a significant antagonist in Dance in the Vampire Bund, serving as one of the three vampire lords who pose a direct threat to the rule of Princess Mina Tepes. His presence represents the internal political strife and ancient power struggles that endanger the newly established vampire sanctuary. He is an older, imposing figure, typically dressed in black and identifiable by a silver cross that hangs from his neck. His posture is often hunched, yet his demeanor is aggressive and imperious, marking him as arguably the most overtly villainous among the three ruling lords.

Background is a crucial element of Ivanovic’s character, as he is not merely an ancient vampire but a figure woven into human history. It is revealed that his true identity is Grigori Yefimovich Rasputin, the infamous Russian mystic who insinuated himself into the confidence of the Romanov dynasty. As Rasputin, he controlled the imperial family from behind the scenes until he foresaw the coming Bolshevik Revolution. In a calculated move of self-preservation, he sold out the Romanovs and staged his own death, only to re-emerge later as the vampire lord Ivanovic. This background explains his manipulative nature and his tendency to seek control over human regimes from the shadows, having done so for centuries.

In terms of personality and motivations, Ivanovic embodies the ruthless and ambitious archetype of an elder vampire. His aggressive and imperious nature sets him apart from the other lords, as he is not content with the existing balance of power. His primary motivation is to seize control of the vampire race, which he sees as his right. This ambition directly targets Mina, as one of the primary goals of the three lords is to secure their lineage and power by marrying her, the last pure-blooded female vampire royal. Unlike lords who might favor political maneuvering, Ivanovic is more direct and violent, driven by a desire to dominate rather than coexist, whether with humans or rival vampires.

Ivanovic's role in the story is that of a primary antagonist, especially in the manga’s major story arcs. He is not a background player but the instigator of a direct and violent attack on the Bund itself. His actions serve as a major test of Mina’s authority and the military strength of her fledgling kingdom. The climax of his personal war against the princess occurs in the depths of the Bund, within a location known as the Cradle. There, he engages in a final, decisive duel to the death with both Mina and her loyal werewolf bodyguard, Akira. His defeat and demise at the end of this battle remove a monumental threat to Mina’s rule and signify a major turning point in the power dynamics among the ancient vampire clans.

Key relationships for Ivanovic are defined by rivalry and enmity. His most important relationship is with Mina Tepes, whom he views not as a legitimate queen but as an obstacle to his own ambition and a pawn to be claimed. He stands in opposition to the protagonist, Akira Kaburagi, who serves as Mina’s shield. The conflict is not merely political but deeply personal, culminating in their final battle. While he is one of the three vampire lords, his relationship with the other two, such as Rozenmann, is likely one of alliance born of convenience and mutual interest in controlling Mina, rather than genuine camaraderie. His history as Rasputin also creates a phantom relationship with the fallen Romanov dynasty, a human family he exploited and ultimately betrayed for his own immortal survival.

Ivanovic does not undergo a redemption arc or a significant change in philosophy. His development is more about the revelation of his layered identity and the escalation of his threat. Initially presented as one of several powerful lords, his character deepens considerably with the disclosure that he was once Rasputin, adding a historical dimension to his villainy. His development culminates in his final, desperate gambit to defeat Mina directly, revealing the full terrifying extent of his power. In his final confrontation, he unleashes his true vampire form, which is described as greatly resembling the demon Baphomet, a monstrous and inhuman shape that contrasts sharply with the more refined forms of other vampires and underscores his complete embrace of monstrous power and evil.

Regarding notable abilities, Ivanovic is a powerful pure-blooded vampire, granting him the standard superhuman strength, speed, and durability of his kind. His most distinctive ability is his transformation into his true vampire form. In this state, he takes on a demonic and monstrous appearance akin to the goat-headed idol Baphomet, which likely enhances his physical combat capabilities significantly. This transformation is a reflection of his inner soul and corruption, serving as a physical manifestation of his ruthless and imperious nature. His long life, spanning centuries as both Rasputin and Ivanovic, has also granted him immense political cunning and strategic knowledge, which he uses to orchestrate his attacks and manipulate events from the shadows.