Onstage, off-the-cuff: ‘Whose Line’ stars Mochrie, Sherwood bring unscripted comedy to Amp stage by Cat Hofacker on July 5, 2018 share Chautauquans can finally answer the question: “Whose line is it anyway?” It’s Colin Mochrie’s and Brad Sherwood’s, who at 8:15 p.m. on Friday, July 6 in the Amphitheater will perform their off-the-cuff show “Scared Scriptless.”