Ben Gleib (born June 18, 1978) is an actor. He voices a ground sloth, called Marshall, in Ice Age: Continental Drift. A native of Los Angeles, California, Gleib is, in addition to being an actor, a standup comedian and writer, headlining comedy clubs and colleges worldwide.Gleib is a regular round table guest on the E! late night talk show Chelsea Lately and has been appearing on the show since January 2008. He is a frequent guest on KPCC (Southern California's NPR affiliate) on the Patt Morrison Program, bringing his comedic spin to political issues. He also reported for KPCC live from the 2008 Republican National Convention in St. Paul, Minnesota.