Grumpy Old Geeks People Adam Dannheisser Person Adam Dannheisser 2 mentions in 1 episode Dave identifies Dannheisser as a high school friend who appeared in Rock of Ages and Beetlejuice. Mentions 579: Something Elon This Way Comes Nov 19, 2022 44:31 one of my high school chums named Adam Danheiser was in the original cast of Rock of Ages on Broadway. 44:49 Adam is also in Beetlejuice.