Memes on Current Events on Instagram: "In The Grim Adventures of Billy & Mandy, Billy’s parents, Harold and Gladys, are key sources of the show’s offbeat humor and absurdity. Harold, Billy’s father, is portrayed as a dimwitted but cheerful man who often displays childlike behavior, much like his son. He has a goofy voice, a clueless personality, and an unshakable optimism that contrasts sharply with the show’s dark tone. Despite his lack of intelligence, Harold is a loving father who occasionall