Leila O'Toole

Debuting in the pages of Marvel Comics Presents #24 in 1989, Leila O'Toole is a Copper Age creation from Marvel who has quietly persisted across an impressive 35-year span — a testament to the staying power of a well-crafted character. She's kept genuinely compelling company over the years, sharing adventures with the likes of Moon Knight, Marc Spector, and the Black Panther himself, T'Challa, and her appearances across titles like Moon Knight: City of the Dead and the Ghost Rider: Danny Ketch Epic Collection speak to her versatility across Marvel's darker corners. With only 16 catalog appearances, she's the kind of hidden gem that rewards the dedicated hunter — a character whose relative scarcity makes each issue feel like a genuine find.