Recurring Guest Characters Jack Black 1 guest appearances Tymberlee Hill 1 guest appearances Stephen Prothero 1 guest appearances Trace Adkins 1 guest appearances Kate Flannery 1 guest appearances Lori Greiner 1 guest appearances Lars Ulrich 1 guest appearances Tom Papa 1 guest appearances Alan Light 1 guest appearances Maria Bello 1 guest appearances Derek Waters 1 guest appearances David Eisenbach 1 guest appearances Jay Leno 1 guest appearances Adam Goldberg 1 guest appearances Noel Wells 1 guest appearances Ty Pennington 1 guest appearances Judd Apatow 1 guest appearances Kurt Braunohler 1 guest appearances Angela Kinsey 1 guest appearances Heather Macdonald 1 guest appearances ⇤ « 1 2 3 » ⇥