Question: What is the name of the lead role in the 1918 serial film that depicts the interception of the secret diplomatic communication issued from the German Foreign Office to Mexico?

Context paragraphs:
Pers Z S: The Pers Z S was the Signal Intelligence Agency of the German Foreign Office (German: "Auswärtiges Amt" ) before and during World War II.  It consisted of two cryptologic sections.  Pers Z S was the cryptanalytic section which was called "Special Service of Z Branch of the Foreign Office Personnel Department" (German: "Sonderdienst des Referats Z in der Personalabteilung des Auswärtigen Amtes" ).  Its mission was the solution of foreign diplomatic codes and ciphers.  The other section, which was the Cryptography Section was called "Personal Z Cipher Service of the Federal Foreign Office" (German: "Personal Z Chiffrierdienst des Auswärtigen Amtes" ) (abbr.  Pers Z Chi).  The latter section was responsible for compilation, distribution and security of Foreign Office codes and ciphers.  Both were colloquially known as Pers Z S. Though similar in nature and operation to the OKW/Chi cipher bureau, it was a civilian operation as opposed to the military operation at OKW/Chi and focus primarily on diplomatic communications.  According to TICOM interrogators it evinced an extraordinary degree of competence, primarily driven by a consistency of development not found in any other German signals bureau of the period.  Pers Z S/Chi was the symbol and the code name of the Chiffrierdienst, i.e. the Cryptanalysis Department of Pers Z S. Although little is known about the organization, in the final analysis, Pers Z S labored at diplomatic cryptanalysis for a regime for which there were no diplomatic solutions.

The Eagle's Eye: The Eagle's Eye is a 1918 American serial film consisting of 20 episodes that dramatizes German espionage in the United States during World War I.  It features King Baggot in the lead role as the daring espionage agent.  Among the events depicted are the sending of the Zimmermann Telegram, Franz von Rintelen's attempts to sabotage cargo loading in San Francisco Harbor, and the capture of the German espionage plans.  It was directed by George Lessey, Wellington A. Playter, Leopold Wharton, and Theodore Wharton, and produced by the Whartons Studio.  The serial is now considered lost.  Because this serial was a commercial failure, it was the last one made by Whartons due to the studio being forced to declare bankruptcy.

The Phantom Empire: The Phantom Empire is a 1935 American Western serial film directed by Otto Brower and B. Reeves Eason and starring Gene Autry, Frankie Darro, and Betsy King Ross.  This 12-chapter Mascot Pictures serial combined the western, musical, and science fiction genres.  The first episode is 30 minutes, the rest about 20 minutes.  The serial film is about a singing cowboy who stumbles upon an ancient subterranean civilization living beneath his own ranch that becomes corrupted by unscrupulous greedy speculators from the surface.  In 1940, a 70-minute feature film edited from the serial was released under the titles "Radio Ranch" or "Men with Steel Faces".  This was Gene Autry's first starring role, playing himself as a singing cowboy.

Zimmermann Telegram: The Zimmermann Telegram (or Zimmermann Note or Zimmerman Cable) was a secret diplomatic communication issued from the German Foreign Office in January 1917 that proposed a military alliance between Germany and Mexico in the prior event of the United States entering World War I against Germany.  Mexico would recover Texas, Arizona and New Mexico.  The proposal was intercepted and decoded by British intelligence.  Revelation of the contents enraged American public opinion, especially after the German Foreign Secretary Arthur Zimmermann publicly admitted the telegram was genuine on March 3, and helped generate support for the United States declaration of war on Germany in April.  The decryption was described as the most significant intelligence triumph for Britain during World War I, and one of the earliest occasions on which a piece of signals intelligence influenced world events.

List of German Ambassadors to China: The Ambassador of Germany to China is an officer of the German Foreign Office and the head of the Embassy of the Federal Republic of Germany to the People's Republic of China.  The position has the rank and status of an Ambassador Extraordinary and Plenipotentiary and is currently held by Michael Clauss.  The Federal Republic of Germany and the PRC have enjoyed diplomatic relations since 1972, while the German Democratic Republic had relations with the PRC from 25 October 1949.  Unofficial representation to Taiwan has been undertaken by the German Institute Taipei since 2000.

Leon W. Powers: Judge Leon W. Powers (June 12, 1888 – January 7, 1959) from Iowa was one of three judges adjudicating the Ministries trial, the eleventh of the Subsequent Nuremberg Trials.  In his dissenting summary on April 14, 1949 he wrote: "In my judgement, it is incorrect to say that all the German people, except a few, partifipated ["sic?"]  in the persecution of the Jews, and it is incorrect to say the the ["sic?"]  Foreign Office knew of extermination of the Jewish people, especially if by 'Foreign Office', it is intended to imply that the Foreign Office defendants here had such knowledge.  The evidence, in my opinion, falls far short of supporting any such conclusion."

Wilhelmstrasse: Wilhelmstrasse (German: "Wilhelmstraße" , see ß) is a major thoroughfare in the central Mitte and Kreuzberg districts of Berlin, Germany.  Until 1945, it was recognised as the centre of the government, first of the Kingdom of Prussia, later of the unified German Reich, housing in particular the Reich Chancellery and the Foreign Office.  The street's name was thus also frequently used as a metonym for overall German governmental administration, much as the term "Whitehall" is often used to signify the British governmental administration as a whole; in English, "the Wilhelmstrasse" usually referred to the German Foreign Office.

The Ministry and the Past: "Das Amt und die Vergangenheit: Deutsche Diplomaten im Dritten Reich und in der Bundesrepublik" (The Ministry and the Past: German Diplomacy in the Third Reich and the Federal Republic) is an 880-page report released by the German Foreign Office and published by Karl Blessing Verlag on October 28, 2010.  The report establishes that the Foreign Office—was deeply involved in the Holocaust.

Diplomatic Wireless Service: The Diplomatic Wireless Service (DWS) was the name of the communications system set up for the British Foreign Office by Brigadier Richard Gambier-Parry, the first Foreign Office Director of Communications, in the latter part of 1945.  It grew out of the Special Communication Units (SCU) which were responsible for communications for MI6 during the war.  Its original base was at Whaddon Hall in Buckinghamshire, but it moved to Hanslope Park (also in Buckinghamshire) in the winter of 1946/47.

Hans Rohrbach: Hans Rohrbach (27 February 1903 – 19 December 1993) was a German mathematician.  He worked both as an algebraist and a number theorist and later worked as cryptanalyst at Pers Z S, the German Foreign Office cipher bureau, during World War II.  He was latterly known as the person who broke the American diplomatic O-2 cypher, a variant of the M-138-A strip cipher during 1943.  Rohrbach wrote a report on the breaking of the strip cypher when he was captured by TICOM, the allied effort to roundup and seize captured German intelligence people and material.

Supporting paragraphs: The Eagle's Eye Zimmermann Telegram
Answer: King Baggot