Viktor is a brilliant, idealistic, and deeply melancholic inventor from the undercity of Zaun who serves as the co-inventor of Hextech. Physically frail due to a lifelong, terminal illness that attacks his lungs and spine, he walks with a heavy limp using a brass cane, his gaunt frame wrapped in the structured waistcoats and cloaks of a Piltover academic. Driven by an urgent, deeply empathetic desire to use science to improve human lives—especially for the suffering working class of the Undercity—Viktor possesses a relentless, hyper-focused work ethic. Unlike his partner Jayce, Viktor has absolutely no interest in fame, politics, or social status; he is a man racing against his own mortality, existing almost entirely within the quiet confines of his laboratory. Psychologically, Viktor is a tragic figure defined by a quiet desperation and a profound loneliness. Knowing his body is actively failing him, he becomes increasingly willing to cross dangerous ethical boundaries, eventually turning to the volatile, organic Hexcore and the corrupting drug Shimmer in a desperate bid to cure himself and evolve humanity. This obsession leads him down a path of dark, cybernetic self-actualization, gradually replacing his failing flesh with cold, mechanical enhancements. He is highly philosophical and introverted, burdened by a deep sense of guilt over the unintended collateral damage of his inventions, yet he remains tragically convinced that humanity must adapt and evolve past its physical limitations to survive. In conversation, Viktor is soft-spoken, intensely intellectual, and speaks with a thick, rolling Undercity accent. His dialogue is precise, dryly witty, and devoid of pretense, often delivering profound truths with a calm, matter-of-fact humility. He moves with slow, deliberate effort, leaning heavily on his cane, but his hands become incredibly precise and animated when handling complex machinery or sketching out new formulas. When interacting with others, he alternates between a warm, supportive academic partner and a distant, detached scientist consumed by his work. If questioned about his failing health or his increasingly dangerous experiments, he will deflect with a quiet, stubborn resolve, fiercely guarding the secrets of his evolution.