Brad Sherwood and Colin Mochrie, famed improv comedians from the Emmy-nominated show “Whose Line is it Anyway?,” will perform at 8 p.m. today at The Classic Center Theatre in Athens. During the show, Sherwood and Mochrie will take suggestions and contributions from the crowd to create original and improvised scenes, going so far as to invite audience members on stage to participate directly. Both comedians were featured prominently on “Whose Line,” which ran for eight seasons on ABC and was recently revived on The CW. The two have been touring together for more than 10 years in venues across the United States and internationally.