"Whizzer" is a fictional character from the Marvel Comics universe, known for his super-speed abilities. He first appeared in the comic series "The Invaders" and is often associated with the Golden Age of Comics. Whizzer's real name is Robert Frank, and he gained his powers through a serum derived from mongoose blood, which allowed him to run at incredible speeds. In addition to his super-speed, Whizzer has been a member of various superhero teams, including the All-Winners Squad. His character has undergone several reboots and adaptations over the years, reflecting the evolving nature of comic book storytelling. Whizzer's legacy continues to influence the portrayal of speedsters in comics.