Hans Christian Blech was a German film, stage and television character actor who found success in both Germany and Hollywood.

Decision Before Dawn is a 1951 American war film directed by Anatole Litvak, starring Richard Basehart, Oskar Werner, and Hans Christian Blech. It tells the story of the U.S. Army using potentially unreliable German prisoners of war to gather intelligence as clandestine "line-crossers" in the closing days of World War II. The film was adapted by Peter Viertel and Jack Rollens (uncredited) from the novel Call It Treason by George L. Howe. The film was a critical success and was nominated for the Academy Award for Best Picture.