Alex Fernie has been improvising for a really long time, largely with his group Convoy at Upright Citizens Brigade. As a director, he's worked on shows like Childrens Hospital, Bajillion Dollar Properties, Last Week Tonight and The Hotwives of Las Vegas. He's created pilots for FX, Amazon, Comedy Central and AMC, has appeared on Reno 911!, Conan, Comedy Bang Bang, Key & Peele and Terriers and has been "improv consultant" for Very Important People on Dropout. If "improv consultant" sounds like a made up term, that's because it kinda is.
