Eric Stoltz 's sister Catherine Stoltz is an opera singer , and his sister Susan R. Stoltz is a writer .
Yahoo ! Moves - Eric Stoltz Retrieved on November 23-2007.Film Reference - Eric Stoltz Retrieved on November 23-2007.  He has two older sisters , Catherine Stoltz ( 1954 ) and Susan Stoltz ( 1957 ) .  ! Online - Eric Sotltz profile Retrieved on November 23-2007 .