A huge part of Wet Hot American Summer’s appeal is the absurdly large and talented ensemble cast. That giant cast includes Elizabeth Banks, H. Jon Benjamin, Michael Ian Black, Bradley Cooper, Judah Friedlander, Janeane Garofalo, Joe Lo Truglio, Ken Marino, Christopher Meloni, Zak Orth, David Hyde Pierce, Amy Poehler, Paul Rudd, Molly Shannon, Michael Showalter, and Kevin Sussman. Shockingly, every adult actor from the original returned for the prequel series, despite many of them, such as Rudd and Banks, having become huge stars.