Anyone who has seen Ben Schwartz's turns as Jean-Ralphio on Parks & Recreation or Clyde on House of Lies knows the man can act. He can improvise, too, having studied the comedy technique for years at the Upright Citizens Brigade Theatre. Lately, he's been pulling in other celebrities (most of whom have never done improv in their lives) to join the fun in his monthly Snowpants show at UCB in Hollywood. Past guests have included Helen Hunt, Dexter's Michael C. Hall and Corey Stoll (Schwartz's House of Lies co-star). Of course, there also are plenty of celebs with existing comedy backgrounds, such as Horatio Sanz, Adam Pally, Donald Glover and Thomas Middleditch, willing to lend a hand to the perpetually sold-out show. 5919 Franklin Ave., Hlywd., 90028. (323) 908-8702, —Farley Elliott

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