Ben10UA on Instagram: "Grandpa Max (Full name: Maxwell Tennyson) is a key character in the Ben 10 animated series. He is Ben Tennyson’s grandfather and a former Plumber, part of a secret organization that deals with alien threats. Known for his experience, bravery, and deep knowledge of aliens and outer space. Drives the iconic Rust Bucket, an old RV used for travel and missions. Acts as a mentor and protector to Ben and Gwen, guiding them in their adventures. Though older, he is skilled in comb

Down with the clown. #ITWelcomeToDerry premieres October 26 on HBO Max. | HBO Max