who is the old man that appears in all marvel movies
Stan Lee Lee was parodied by Kirby in comics published by rival DC Comics as Funky Flashman.[132] Kirby later portrayed himself, Lee, production executive Sol Brodsky, and Lee's secretary Flo Steinberg as superheroes in What If #11 (October 1978), "What If the Marvel Bullpen Had Become the Fantastic Four?", in which Lee played the part of Mister Fantastic. Lee has also made numerous cameo appearances in many Marvel titles, appearing in audiences and crowds at many characters' ceremonies and parties, and hosting an old-soldiers reunion in Sgt. Fury and his Howling Commandos #100 (July 1972). Lee appeared, unnamed, as the priest at Luke Cage and Jessica Jones' wedding in New Avengers Annual #1 (June 2006). He pays his respects to Karen Page at her funeral in Daredevil vol. 2, #8 (June 1998), and appears in The Amazing Spider-Man #169 (June 1977).
Dum Dum Dugan Neal McDonough appeared as the character in the 2011 Marvel Studios film Captain America: The First Avenger, the 2013 Marvel Studios short film Agent Carter (post-credits) and also in 2015 in the fifth episode of Marvel's Agent Carter.