Viktor Hargreeves[2] (originally Number Seven, previously referred to as Vanya Hargreeves) was a kind and quiet member of the Umbrella Academy, and one of the superpowered children conceived from the Marigolds. Despite being capable of powerful sound manipulation, he was seen as too dangerous by his father, who kept his powers suppressed for much of his life as a result.

After he rediscovered and unleashed his powers as an adult, Viktor went on a rampage and fought his siblings,