He also appeared regularly as a guest on Rachael Ray from 2011 to 2015 .
As a stand - up comedian Kreischer has performed internationally and has appeared on late night talk shows Late Show with David Letterman , Jimmy Kimmel Live and Conan .
Kreischer also appeared regularly as a guest on Rachael Ray from 2011 to 2015 .
As a stand - up comedian Kreischer has performed internationally and has appeared on late night talk shows Late Show with David Letterman , Jimmy Kimmel Live and Conan .