Don Heck was an influential American comic book artist, best known for his work with Marvel Comics. He played a significant role in the development of iconic characters such as Iron Man and The Avengers, contributing to the visual storytelling that defined the superhero genre in the 1960s. Throughout his career, Heck's distinctive style and ability to bring characters to life made him a sought-after artist in the comic book industry. His contributions helped shape the Marvel Universe, leaving a lasting legacy that continues to inspire new generations of artists and fans alike.