"Ms. Casey's voice especially started to take shape once we got on set," Lachman tells EW. You've never seen Ms. Casey like this before. When Lumon's soft-spoken wellness counselor — played by Dichen ...

You've never seen Ms. Casey like this before. "This video shows my very first audition," Lachman tells EW. "As you can imagine, the secrets of Ms. Casey and Gemma at this point were closely guarded, ...