Tessa Mittelstaedt Tessa Mittelstaedt (born Ulm, April 1, 1974) is a German actress. She is best known for playing the role of Franziska Lüttgenjohann in the Westdeutscher Rundfunk iteration of Tatort, alongside Klaus J. Behrendt and Dietmar Bär. Tessa Mittelstaedt in Stiller See (Germany-2009) Share this:RedditFacebookTumblrTwitterMorePocketLinkedInEmailPinterestLike this:Like Loading...