April O'Neil

April O'Neil debuted as a computer programmer and lab assistant working for scientist Baxter Stockman in New York City, where a chance encounter with four mutant ninja turtles thrust her into their underground world and made her one of their closest human allies.

Few characters in Bronze Age comics have proven as enduringly beloved as April O'Neil, who burst onto the scene in Teenage Mutant Ninja Turtles #2 back in 1984, courtesy of Peter Laird. Over an extraordinary four-decade run stretching all the way to 2026, she's remained a constant presence in the TMNT universe, sharing pages with an iconic cast that includes Splinter, Casey Jones, Michelangelo, Karai, and even the legendary Miyamoto Usagi. Born from the scrappy, black-and-white indie comics world of Mirage Studios, April is one of those rare characters whose staying power speaks for itself — 66 catalog appearances and still going strong, with a key issue to her name that any serious collector will want on their shelf.