The Glee actor will star as a first-year surgical resident at Grey Sloan Memorial Hospital.

From glee club to medical school,Harry Shum Jr.is the latest actor to join theGrey’s Anatomycast.

His character is sharp-witted, impatient, and brilliant.

Harry Shum Jr.

Harry Shum Jr. joins the cast of ‘Grey’s Anatomy’.Jerod Harris/FilmMagic

A family crisis interfered with his career plans and now he’s got a lot to prove.

Many viewers will likely already recognize Shum thanks to his long-running role as Mike Chang onGlee.

Shum is signed on for both theCrazy Rich Asianssequel and a spin-off that’s in development.