Ling has starred in over 20 independent films and had numerous TV roles. She made her TV debut in 2003 on Buffy the Vampire Slayer, and later starred in the recurring role of Kim Tao on NBC's Studio 60 on the Sunset Strip. She played Anna Wu on NBC's Chuck for 3 seasons. Her other major guest and recurring roles on television include stints on House, ER, Grey's Anatomy, The O.C. and The Deep End.