What's On 7 Deadly Idiots Joel Stern Joel Stern is a writer, director and performer best known for his work with YouTube comedy sketch channel, Third Leg Studios, which he co-founded. After training in physical theatre at Ecole Gaulier and completing a Diploma at the NFTS, Joel now works as a freelance filmmaker and actor. Most recently, he has finished filming his first independent feature film which is currently in post production. His performance credits include: ITV's Stand Up Sketch Show and various sketches on BBC Three. He has also had the privilege of starring as human set dressing on many big-budget film productions as an SA.