Hellboy, the famous comic book character created by writer-artist Mike Mignola, has attempted to look "normal" on a few occasions. In the comic book series, "The Conqueror Worm," Hellboy developed a strong desire to be accepted by the human society and decided to shave off his horns and file down his "stone" hand in an attempt to look less monstrous. He even tried dressing up in a suit and wearing a hat to blend in.
However, his attempts to look normal were short-lived, as he was soon called back into action to save the world from ancient and powerful forces. Despite his efforts to fit in with humans, he eventually embraced his unique appearance and abilities, accepting that he was not meant to be "normal" but rather to use his powers for good.