As far as other ethnic groups go, I'm seeing an upswing in the representation of South Asians on TV. Sendhil Ramamurthy is staying steadily employed. Last week's Arrow episode guest-starred both Janina Gavankar (as the lead character's current romantic interest) and Rekha Sharma (as a fence), neither of whom was playing a character who was specifically written as Indian.
There's also Sally the ghost on the US version of BEING HUMAN . . . .