We’ve got an exclusive first look at Dr. Ephraim Goodweather played by Corey Stoll from this Sunday night’s episode of The Strain. The good doctor must alter his appearance to go incognito.

The Strain airs Sunday nights at 10:00 PM ET/PT on FX. Episode five, “Quick and Painless,” airs Sunday, August 9 from 10:00 PM – 11:09 PM.

THE STRAIN — “Quick and Painless” — Episode 205 (Airs August 9, 10:00 pm e/p) Pictured: Corey Stoll as Ephraim Goodweather. CR: Michael Gibson/FX