Jeff Leaf is the creator/founder of the original Los Angeles based sketch comedy group The Intecollectuals, who have won 2011 Best of the Fest at LA Sketch Festival, and 2012 Best Sketch Group at LA Sketch Festival. They have also have received rave reviews at the 2013 NYC Sketch Festival, 2014 Chicago Sketch Festival, and 2014 Seattle Sketch Comedy Festival.

Jeff loves to work on both coasts. His NYC based sketch comedy group, DEFIANCE, in which he also directs, writes, produces and performs with, can be seen monthly at the PIT. He has performed over 400 sketch comedy shows over the years. Along with the stage, Jeff parlays to television where he can been seen on How I Met Your Mother playing Carrie Underwood's boyfriend.

Most recently, he directed, produced, co-wrote, and acted in the pilot The Alley.