Stephen Colbert showed 'great wit' as part of '80s improv group at NU
They knew it even then. A quarter-century ago, when Comedy Central bloviator and lushly coiffed American icon Stephen Colbert was part of a short-lived improv troupe " the No Fun Mud Piranhas " at Northwestern University in Evanston, castmates were wowed by his natural ability to bring the funny.