He can imitate Arnold, Keanu and, perhaps most famously, the "movie voice-over guy." Plus, he does more sound effects than that dude from Police Academy. PABLO FRANCISCO, appearing at the Punchline JULY 28, probably has a more versatile vocal range than Mariah Carey and devotes much of his act to (lovingly) satirizing his Latino heritage. The young comedian rose to fame after a few sketch-stealing appearances on "Mad TV," which led to his own half-hour stand-up special on Comedy Central. Since then, he's appeared on "The Tonight Show with Jay Leno" and the otherwise god-awful "Mind of Mencia." But don't hold that against him. Through July 30. $25. Fri., 8 and 10 p.m.; Sat., 7, 9 and 11 p.m.; Sun., 7:30 p.m. 280 Hilderbrand Drive. 404-252-5233. www.punchline.com.