Walter Müller was born on 6 May 1911 in Prague, Austria-Hungary [now Czech Republic]. He was an actor, known for Im Weissen Rössl (1952), Hoch klingt der Radetzkymarsch (1958) and Mask in Blue (1953). He was married to Lisa Helwig. He died on 2 March 1969 in Starnberg, Bavaria, West Germany.