Stan Lee poses next to a Spider-Man model at his office in 2008. Lee, who co-created Spider-Man and many other popular comic book characters that have become household names, died Monday, November 12, at the age of 95. Jonathan Alcorn/Bloomberg/Getty Images

Lee, born Stanley Martin Lieber, holds up comic book art during the 1970s. In 1941, he became the editor at Timely Comics, which evolved into Marvel Comics. Angelo Cozzi/Mondadori Portfolio/Getty Images

Lee reads a comic in the '70s. He and his collaborators at Marvel introduced characters in the 1960s that included the Fantastic Four, the Incredible Hulk, Captain America, Iron Man and the X-Men. News Syndication/Newscom

Lee talks to actor Nicholas Hammond during the filming of the television series "The Amazing Spider-Man" in 1978. CBS Photo Archive/Getty Images

Lee poses for a portrait in 1978. Santi Visalli/Getty Images

Lee takes a phone call at his New York offices in 1980. William Sauro/The New York Times/Redux

Lee was born and raised in New York City. He served in the US Army during World War II, writing manuals and scripts for training films as part of the Signal Corps. He is one of only nine people in the Army listed as a "playwright." EVAN HURD/Corbis/Getty Images

Lee in 1993. He became Marvel's publisher in 1972. ARCHIVIO/A3/CONTRASTO/Redux

Lee poses with a few Marvel heroes in 1997. Albert Ortega/Getty Images

Lee attends an event with his wife, Joan, in 1997. She died in 2017. Albert L. Ortega/WireImage/Getty Images

In 2000, Lee compares muscles with Lou Ferrigno, who once played the Incredible Hulk on television. Joe Thomas/Hulton Archive/Getty Images

Lee autographs a man's leg during a book premiere in 2001. Frederick M. Brown/Getty Images

Lee arrives with actress Kirsten Dunst for the premiere of the film "Spider-Man" in 2002. Dunst played Mary Jane Watson in the film. Kevin Winter/Getty Images

Lee poses by a cake celebrating Spider-Man's 40th anniversary. Michel Boutefeu/Getty Images

Lee and film producer Ian Bryce accept a Faith and Values Award for the "Spider-Man" film in 2003. Kevin Winter/Getty Images

Lee and his wife arrive for an awards gala in 2004. They were married in 1947. Mark Mainz/Getty Images

Lee relaxes in his Los Angeles office. Lee championed close collaboration between comic book writers and artists. The collaborative approach was known as the "Marvel Method." In 2010, he told CNN, "All of my life in comics I have worked with artists, so I've collaborated with them. I would write down the original story, they would draw it and then I would edit it and do the art direction. So everything I've done has always been a collaboration." Kim Kulish/Corbis/Getty Images

Stan Lee holds the "All Time Marvel Legend Award" that was given to him at Comic-Con in 2007. Jason Merritt/FilmMagic/Getty Images

Lee appears in the 2007 film "Spider-Man 3." He has made cameos in nearly every Marvel movie, often providing comic relief. His roles over the years have included hot-dog vendor, postal worker, security guard and astronaut. Columbia Pictures

Lee gets a lifetime achievement award at the Jules Verne Adventure Film Festival in 2007. Albert L. Ortega/WireImage/Getty Images

Lee signs an "Iron Man" mask in 2008. Michael Tullberg/Getty Images

Lee shakes hands with US President George W. Bush after receiving a National Medal of Arts in 2008. Mark Wilson/Getty Images

Lee accepts the Comic-Con Icon award in 2009. Kevin Winter/Getty Images

Lee receives a star on the Hollywood Walk of Fame in 2011. Alberto E. Rodriguez/Getty Images

Lee attends the Los Angeles premiere of "The Avengers" in 2012. Tony Lowe/camerapress/redux

Lee is presented with a birthday cake for his 91st birthday in 2013. Gary Miller/FilmMagic/Getty Images

In 2014, Lee tours the Avengers exhibition at Discovery Times Square. Thos Robinson/Getty Images

Lee's daughter, Joan, surprises her father at a Comic-Con panel in 2016. Kelly Sullivan/Getty Images

Lee poses with Los Angeles Dodgers pitcher Josh Reddick after throwing out the ceremonial first pitch at a game in 2016. Noel Vasquez/Getty Images

Lee plays a strip-club DJ in the 2016 film "Deadpool." Twentieth Century Fox

Lee leaves his handprints and footprints outside the TCL Chinese Theatre in Hollywood in July 2017. David Livingston/Getty Images