Grandpa Munster is a fictional character from the television series The Munsters, which aired in the 1960s. Portrayed by actor Al Lewis, he is the eccentric and humorous vampire grandfather of the Munster family. Grandpa is known for his wild inventions and love for mischief, often adding a comedic twist to the family's spooky lifestyle. As a character, Grandpa Munster embodies the classic traits of a vampire, including a love for bats and a penchant for dark magic. Despite his supernatural abilities, he is portrayed as a loving and supportive family member, often engaging in playful antics with his relatives, including his grandson Eddie Munster.