Crimson Dynamo is the name of several characters appearing in American comic books published by Marvel Comics who have all been powered armor–wearing Russian or Soviet agents who have clashed with the superhero Iron Man over the course of his heroic career.

Secret War is a 2004–2005 comic book storyline published by Marvel Comics, consisting of a central, five-issue miniseries written by Brian Michael Bendis and illustrated by Gabriele Dell'Otto, and a number of tie-in books. It is loosely based on classified operations told to Bendis by an anonymous high-ranking officer in the United States Intelligence Community during Bendis' childhood.