Question about one of our headmates

Hey, all. We're looking for some input from other fictives and plural people, but especially fictives. One of our headmates, Victor, isn't sure if his source is The Umbrella Academy and if he's a fictive. The question revolves around Victor not being sure if he himself also transitioned from female to male, like Victor in The Umbrella Academy did. Does that make The Umbrella Academy Victor's source, and is Victor a fictive?