An African-American prison psychiatrist finds the boundaries of his professionalism sorely tested when he must counsel a disturbed inmate with bigoted Nazi tendencies.

Sidney Poitier
as Doctor

Bobby Darin
as Patient

Peter Falk
as Young Psychiatrist

Carl Benton Reid
as Chief Medical Officer

Mary Munday
as Bar Hostess

Howard Caine
as Tavern Owner

Gilbert Green
as Jewish Father

Barry Gordon
as Patient (as a boy)

Richard Bakalyan
as Jimmy

Lynn Loring
as Jewish Girl