Richard Treat Williams Jr. was an American stage, film and television actor with a career that spanned five decades.

Smooth Talk is a 1985 film directed by Joyce Chopra, loosely based on Joyce Carol Oates' short story "Where Are You Going, Where Have You Been?" (1966), which was in turn inspired by the Tucson murders committed by Charles Schmid. The protagonist, Connie Wyatt, is played by Laura Dern. The antagonist, Arnold Friend, is played by Treat Williams.