Mark Gruenwald

Mark Gruenwald appeared in Marvel Two-in-One #60 as a fictionalized version of the real-life Marvel editor and writer of the same name. Like several Marvel staffers of the era, he was inserted into a story as a cameo version of himself.

There's something wonderfully meta about Mark Gruenwald turning up as a Marvel Comics character — debuting in Bronze Age classic Marvel Two-in-One #60 (1980), brought to life by Sal Buscema. With 46 appearances spanning all the way to 2026, this figure has remarkable staying power, showing up most frequently in The Incredible Hulk and Nick Fury, Agent of S.H.I.E.L.D., and keeping genuinely iconic company alongside Spider-Man, Captain America, and Dum Dum Dugan. Affiliated with the Pantheon, the Avengers, and the U-Foes — a fascinatingly eclectic set of team connections — and with two key-issue appearances to their name, Mark Gruenwald is a delightful deep-cut for collectors who love the moments when Marvel's history folds back on itself in the most charming ways.