Who is XXX by?
Masked Marauder
The character subsequently appears in Daredevil #22-23 (November-December 1966), #26-27 (March-April 1967), Iron Man #60-61 (July-August 1973, Werewolf by Night #42-43 (January, March 1977), and The Spectacular Spider-Man #25-28 (December 1978-March 1979). The character appears again many years later in Punisher War Journal #4 (April 2007). The Masked Marauder received an entry in the All-New Official Handbook of the Marvel Universe A to Z: Update #3 (2007).