Mary Zero

Mary Zero is a Marvel character whose defining trait is a form of invisibility — not a superpower, but a social one: people simply cannot perceive or remember her. This renders her effectively invisible to the world around her, making her a uniquely tragic figure in the Agent X supporting cast.

Meet Mary Zero, a quietly compelling figure who slipped into Marvel's Modern Age courtesy of the sharp creative mind of Gail Simone. Debuting in Agent X #3 in 2002, she's a character whose very name hints at invisibility and erasure — and that brief 2002–2003 run in Agent X places her in wonderfully offbeat company, sharing pages with the likes of Taskmaster, Outlaw, and Sandi Brandenberg. With only six catalog appearances to her name, Mary Zero is the kind of deep-cut discovery that reminds devoted collectors why hunting through the back-issue bins is always worth it.