In the 1988 miniseries `` Hemingway '' , starring Fiona Fullerton , Duff Twysden was played by Stacy Keach . In the miniseries '' Hemingway `` of 1988 with Fiona Fullerton , Duff Twysden was played by Stacy Keach . Duff Twysden was played by Fiona Fullerton in the miniseries '' Hemingway `` in 1988 with Stacy Keach .