Nan Withers-Wilson, P.h.D. is a professional vocal director and dialect coach whose credits include Someone Who'll Watch Over Me, Smoke on the Mountain, Woody Guthrie's American Song, From the Mississippi Delta at Northlight Theatre, Joe Turner's Come and Gone for the Goodman Theatre, Pantomime at the Court Theatre and the off-Broadway production of From the Mississippi Delta at Circle in the Square. She is a member of the Theatre Department faculty at Loyola University of Chicago ad author of Vocal Direction for the Theatre, a book which examines the function of the theater voice specialist within the production process. Prior to commencing her teaching career, Nan was a professional actress with New Haven's Long Wharf Theatre, the Buffalo Studio Arena and the Actors Theatre of Louisville. She is a member of the Actors Equity Association and the Voice and Speech Trainers Association.