Recurring Guest Characters Alex Mandel 6 guest appearances Howie Mandel 5 guest appearances Bobby Lee 3 guest appearances Chuey Martinez 2 guest appearances Nick Cannon 2 guest appearances Heidi Klum 2 guest appearances David Koechner 2 guest appearances Tom Green 2 guest appearances Joan Rivers 2 guest appearances Melissa Rivers 2 guest appearances Jessimae Peluso 1 guest appearances Penn Jillette 1 guest appearances Josh Meyers 1 guest appearances Melissa Peterman 1 guest appearances Sarah Colonna 1 guest appearances Marlon Wayans 1 guest appearances Mo Mandel 1 guest appearances King Bach 1 guest appearances Jack Osbourne 1 guest appearances Dennis Roady 1 guest appearances ⇤ « 1 2 3 » ⇥