| Katsuo | Abe | Japanese military attache in Berlin. |
| Evelyn | Akeley | School teacher from Skidmore. |
| Louise | Allen | Code breaker. |
| Deborah | Anderson | Desch's daughter. |
| Benedict | Arnold | Military officer. |
| Ann R. | August | Code breaker. |
| Francis | Bacon | English statesman and philosopher. |
| Jeuel | Bannister | High school band director. |
| Mort | Barrow | Military man. |
| Anne | Barus | Senior student at Smith College, History major. |
| Roger | Baudouin | Writer. |
| Edward Beale | McClean | Publisher of the Washington Post. |
| Alice | Beardwood | School teacher from Bryn Mwar. |
| Mabel J. | Belcher | One of the students of Wellesley College. |
| Betty | Bemis | Champion swimmer. |
| Violet E. | Bennett | One of Wilma's team. |
| Carrie | Berrie | Former Texas school teacher. |
| Wilma | Berryman | Worked for the Signal Intelligence. |
| Elizabeth | Bigelow | Aspiring architect recruited from Vassar. |
| William J. | Bissell | Head of the Idaho Hall. |
| Raymond J. | Blair | Mabel's boyfriend. |
| Nellie | Bly | Journalist. |
| Gloria | Bosetti | Italian major student. |
| Fredson | Bowler | American bibliographer. |
| Marge | Boynton | Willard Van Orman Quine's wife. |
| Dorothy V. | Braden | School teacher. Aka: Dot. |
| John | Braden | Dot's younger brother. Aka: Teedy. |
| Virginia | Braden | Dot's mother. Aka: Meemaw. |
| Boyd | Braden Jr. | Dot's brother. Aka: Bubba. |
| | Bradley | Army officer. |
| Annie | Briggs | Head the production unit. |
| Harold | Briggs | History professor. |
| Joy Bright | Hancock | Veteran of both First and Second World War. |
| Olga | Brod | One of Wilma's team. |
| Ann | Brown | WAC working at the traffic analysis. |
| Lena | Brown | Creator of many handmade things. |
| Jim | Bruce | Army meteorologist. |
| Polly | Budenbach | Helped Frank Raven break Japanese naval
attaché cipher. |
| Janet | Burchell | Navy liaison. |
| Vannevar | Bush | MIT engineer. |
| Bill | Cable | Crow's husband. |
| Julius | Caesar | Former Roman dictator. |
| Margaret | Calhoun | One of the instructors. |
| Kay | Camp | Graduate of Swarthmore, handled the geographic unit. |
| Howard | Campaign | New recruit. |
| Ava | Candle | WAVES member. |
| Frank | Capra | Movie director. |
| Ann | Caracristi | Worked as code breaker. Aka: Annie. |
| Paavo | Carlson | One of the officer of Finnish extraction. |
| Jane | Case | Theodore Case's daughter. |
| Theodore | Case | American physicist. |
| Javier | Cerecedo | Army captain. |
| Anna | Chaffin | Compiling Japanese place names. |
| Stephen | Chamberlain | Chief Executive Officer. |
| Winston | Churchill | British Prime Minister. |
| Mrs. | Clark | One of the clerks. |
| Hugh H. | Clegg | Assistant director of the FBI. |
| John | Coddington | Head of the information section. |
| William | Coffee | Team leader. |
| Elizabeth | Colby | Math major from Wellesley College. Aka: Bets. |
| Nancy | Coleman | Member of an elite team. |
| Christopher | Columbus | Italian navigator. |
| Ada | Comstock | President of Radcliffe College. |
| Preston | Corderman | Army coronel. |
| Mrs. | Covington | In-charge of the boarding house. |
| Jaenn | Coz | One of the code-breaking librarians who work for the Navy. |
| Bing | Crosby | American singer. |
| Oveta | Culf Hobby | Texas newswoman. |
| Prescott | Currier | Naval code breaker during World War ll. |
| Mary Anna | Custis Lee | Robert Lee's wife. |
| Harold | Dale Gunn | Reporter. |
| Arvid | Damm | Swedish engineer. |
| Josephus | Daniels | Secretary of the U.S. Navy. |
| Virginia Dare | Aderholdt | From Bethany College, now handled the JAH. |
| Herbert | Davis | Smith's president. |
| Lillian | Davis | In-charge of logging in the traffic analysis section. |
| Blanche | De Puy | Spanish major student. |
| Dorothy | Desch | Joseph Desch's wife. |
| Joseph | Desch | Electrical engineer and inventor. Aka: Joe. |
| Thomas | Dewey | Former governor of New York. |
| Nancy | Dobson | Code breaker. |
| Helen | Dodson | Professor at Wellesley Astronomy Department. |
| Donna | Doe Southall | One of WAVES officers. |
| Karl | Donitz | German admiral. |
| Michael | Driscoll | Member of Pennsylvania House of Representative. |
| Mrs. | Driscoll | Transferred to N.A.T. Japanese project. |
| Allen | Dulles | Former director of Central Intelligence. |
| Mary Jo | Dunning | Grotjan's colleague. |
| Thomas | Dyer | Mayor of Chicago. |
| Amelia | Earhart | A woman aviator. |
| Jonathan | Edwards | American Theologian. |
| Flobeth | Ehninger | Douglas Ehninger's wife. |
| Dwight | Eisenhower | 34th U.S. President. |
| Howard | Engstrom | Headed reserved operations at U.S. Navy Communications. |
| Arlene | Erlanger | Smith's graduate assigned to build file on Japanese shipping. |
| Hugh | Erskine | Served 3years in the Air Force during World War ll. |
| Harry | Esmacher | Translator. |
| George | Fabyan | A millionaire businessman. |
| Marjorie | Faeder | Assigned to work at electric cipher machine (ECM). |
| Dot | Firor | Iris's officer in-charge. |
| Iris | Flaspoller | Worked in the U.S. Navy. |
| Charles | Ford | Weedon's boss. |
| James | Forrestal | Secretary of the Navy. |
| Benjamin | Franklin | One of the Founding Fathers of the U.S. |
| Lenore | Franklin | One of the instructors. |
| Clement | French | Dean at Randolph Macon |
| William | Friedman | U.S. Army cryptographer. |
| Olivia | Fulghum | School teacher. |
| Meredith | Gardner | American cryptanalyst. |
| Virginia | Gildersleeve | Dean of Barnard College. |
| Margaret | Gilman | Biochemistry major from Bryn Mawr. |
| Marcel | Givierge | Author of Course Cryptography. |
| Alice | Goodson | One of the instructors. |
| Cyrus | Gordon | Cryptanalyst. |
| Eleanor | Grabeel | Gene Grabeel's sister-in-law. |
| Gene | Grabeel | Ex-school teacher, presented with some Soviet intercepts. |
| Alexander | Graham Bell | Inventor. |
| Thomas | Gray | American poet. |
| Genevieve M. | Grotjan | American mathematician and cryptanalyst. Aka: Gene. |
| Bessie L. | Grubb | One of Wilma's team. |
| Edna Kate | Hale | One of Wilma's group. |
| Nancy | Hale | Fredson Bower's wife. |
| Lucille | Hall | Pulliam's acquaintance. |
| Marshall | Hall | Mathematician from Yale. |
| William | Halsey | American admiral in the U.S. Navy. |
| Ann S. | Hamilton | Arthur James's wife. |
| Mrs. | Hamilton | Transferred to N.A.T. Japanese project. |
| Jeanne | Hammond | Member of class '43 at Wellesley College. |
| Clarence | Hancock | American congressman. |
| | Hanson | Jaenn Coz's commanding officer. |
| Lois | Harer | One of the instructors. |
| Suzanne | Harpole | Wellesley code breaker. |
| Ralph S. | Hayes | Lieutenant Navy commander. |
| Ben | Hazard | Mathematician from Harvard. Aka: Hap. |
| Edward | Hebern | Inventor. |
| Parker | Hitt | American military officer. |
| Jewel | Hogan | Worked at the machine section. |
| Herbert | Hoover | 31st U.S. President. |
| Grace | Hopper | American scientist. |
| Esther | Hottenstein | Lieutenant in-charge at the women's barracks. |
| H. S. | Howard | Rear Admiral of the U.S. Army. |
| John | Howard | Engineer from MIT. |
| Elizabeth | Hudson | School teacher. |
| Beatrice | Hughart | Jimmie Lee's friend. Aka: Bea. |
| Erma | Hughes | Psychology major from University of Maryland. |
| John | Hurt | Japanese translator. |
| Betty | Hyatt | Worked as a yeoman. |
| Randall | Jacobs | Chief of the Naval personnel. |
| Oswald | Jacoby | American author. |
| Arthur | James | Soldier. |
| Thomas | Jefferson | 3rd U.S. President. |
| Jacqueline | Jenkins | Bill Nye's mother. |
| Doris | Johnson | Former American politician. |
| Pike | Johnson | Scribner's acquaintance. |
| Stanley | Johnston | British author and former politician. |
| Ruby C. | Jones | One of Wilma's team. |
| Ethel | Just | Led the expert translators. |
| | Kase | Japanese ambassador to Bern. |
| Frederick C. | Kasten | Alathena's boyfriend. |
| George C. | Kenney | MacArthur's air corps commander. |
| Dr. A.A. | Kern | Head of Randolph Macon's English department. |
| Charles | Kettering | Invented automobile ignition system. |
| | Kierkegaard | Danish philosopher. |
| Ernest | King | Commander-in-Chief - U.S. Fleet and chief of Naval Operations. |
| Gertrude | Kirtland | Former Kansas school teacher. aka: Gert. |
| Eartha | Kitten | American singer. |
| Kenneth | Knowles | Commander working with a counterpart tracking room in England. |
| Solomon | Kullback | American mathematician. |
| Phyllis | La Due | One of the recruits. |
| Fiorello | La Guardia | Former mayor of New York City. |
| Richmond | Lattimore | American poet. |
| Pierce | Laval | French politician. |
| Mildred | Lawrence | School teacher. |
| Edwin | Layton | Rear Admiral of the U.S. Navy. |
| Robert E. | Lee | American confederate soldier. |
| Jimmie Lee | Hutchinson | Robert Power's fiance. |
| Frank | Lewis | Led a unit to break the Japanese Army System. |
| Mildred W. | Lewis | One of Wilma's team. |
| George | Lloyd | Mount Vernon's president. |
| C. A. | Lockwood | Commander of the submarine force of the U.S. Pacific Fleet. |
| Bill | Ludington | Georgia O'Connor's son. |
| Margaret | Ludwig | One of the instructors. |
| Frances | Lynd | Code breaker. |
| Douglas | MacArthur | American general. |
| Ronnie | Mackey | Former telephone operator who joined the Navy. |
| John | Manly | American lawyer. |
| James | Mann | Washington lawyer. |
| George | Marshall | Former U.S. Secretary of State. |
| Norma | Martell | One of the WAC assigned at Vint Hill. |
| Janice | Martin | Personel in the submarine tracking room. |
| Joseph | Mauborgne | Chief Signal officer of the Army. |
| Mildred | McAfee | Served as First Director of the WAVES in the U.S. Navy. |
| Miss | McCormick | The only girl taking the Harvard Japanese course. |
| Constance | McCready | Journalist and politician from Portland. |
| Charlotte | McLeod | In-charge of maintaining the commutators. |
| Ralph I. | Meader | Wiry Navy officer. |
| Donald | Menzel | Astronomy professor at Harvard. |
| Agnes | Meyer | American journalist. |
| Marie | Meyer | A linguist. |
| Olive | Mickle | Bernice's acquaintance. |
| Lottie E. | Miller | One of Wilma's team. |
| Marjorie A. | Miller | Code breaker. |
| Ruth M. | Miller | American artist. |
| Dave | Mirsky | Soldier. |
| Viola | Moore | French major from Bryn Mawr. Aka: Vi. |
| Juanita | Morris | Student from North Carolina worked as cryptologist. |
| Benito | Mussolini | Former prime minister of Italy. |
| Chester | Nimitz | Admiral of the U.S. Navy. |
| Bea | Norton | History major student. |
| Ben | Norton | American journalist. |
| Leigh | Noyes | U.S. Navy rear admiral. |
| Bill | Nye | American science communicator. Aka: Science Guy. |
| Barrack | Obama | 44th U.S. President. |
| Georgia | O'Connor | Joined the WAVES out of curiosity. |
| Josephine | Ogden | James Forrestal's wife. |
| | Okato | Japanese ambassador to Stockholm. |
| Ida Mae | Olson | Naval code breaker. |
| Willard Van | Orman Quine | American philosopher. |
| Helen | O'Rourke | Designed the overlap unit. |
| Hiroshi | Oshima | Japanese ambassador to Britain. |
| Myrtle | Otto | Boston-bred code breaker. |
| Wyman | Packard | Headed a unit of women working the midnight watch. |
| Josephine | Palumbo | Daughter of an Italian immigrant laborer. |
| Curtis | Paris | Dot's acquaintance. |
| Jane B. | Park | Rans the cryptographic training unit. |
| Lillian | Parmley | Former teacher. |
| John | Patterson | Former governor of Alabama. |
| George | Patton | American general. |
| Louise | Pearsall | Joined the Women's Reserved in the U.S. Navy. |
| William | Pearsall | Louise's brother. |
| Clara | Petacci | Mussolini's mistress. |
| Bernice | Phillips | Worked in the indexing and sorting section. |
| William | Pitt | First Earl of Chatham. |
| Edgar Allan | Poe | American writer. |
| Robert | Powers | Pilot with the U.S. Air Force. |
| Mary Louise | Prather | American spy and pioneering women in the field of cryptography. |
| Jane | Pulliam | Real estate agent. |
| Goldie M. | Purks | One of Wilma's team. |
| Dorothy | Ramale | Wanted to be a math teacher. |
| Lyn | Ramsdell | Former employee at Boston Wool Merchant. |
| Tony | Randall | Actor. |
| Bill | Randolph | Dot's old friend. |
| Frank | Raven | Renowned Naval code breaker. |
| Ronald | Reagan | 40th U.S. President. |
| John | Redman | One of the top intelligence officers in Washington. |
| Joseph | Redman | Director of Naval Communications. |
| Sumner | Redstone | Young officer in the translating unit. |
| | Regan | WAC member. |
| Edwin | Reischauer | American educator. |
| Marian | Rejewski | Polish mathematician. |
| Elizabeth | Reynard | English professor at Barnard College. |
| Edith | Reynolds | An author. |
| Joe | Richard | American officer. |
| Joan | Richter | Former real estate agent. |
| Ed | Robarts | Betty Bemis' fiance. Aka: Shortly. |
| Joe | Rochefort | American Naval officer. |
| Nourse | Rogers | American social welfare volunteer and politician. |
| Erwin | Rommel | German field marshal. |
| Eleanor | Roosevelt | Former First Lady of U.S. |
| Franklin D. | Roosevelt | 32nd U.S. President. |
| Frank | Rowlett | American cryptologist. |
| Marshall | Rundstedt | German military officer. |
| Dorothy | Rush | George Rush's wife. |
| George | Rush | Dot's boyfriend. |
| Leslie | Rutledge | Harvard graduate. |
| Luigi | Sacco | Italian general and cryptanalyst. |
| Laurence | Safford | One of the U.S. Navy's core breaker. |
| Bernie | Sanders | U.S. senator. |
| Naotake | Sato | Japanese ambassador to Moscow. |
| Ruth | Scharf | Designer. |
| Ruth | Schoen | Legal secretary. |
| Juanita | Schroeder | School teacher. |
| Charles | Scribner | Publisher. |
| William | Seaman | Biggest complainer. |
| William | Shakespeare | English poet. |
| Elizabeth S. | Arnold | Vassar-educated mathematician. Aka: Bibba. |
| Frank | Sinatra | American singer. |
| Abraham | Sinkov | U.S. cryptanalyst. |
| Al | Small | Man under Wilma's team. |
| Alathena P. | Smith | One of the students of Wellesley College. |
| Bernice | Smith | Navy recruit. |
| Eleanor | Smith | A woman aviator. |
| Elizebeth | Smith | American cryptanalyst and author. |
| Rhea | Smith | Professor at Rollins College. |
| William | Smith | New York editor. |
| | Solek | WAC member. |
| Ann | Solomon | Mathematician. |
| Elizabeth | Somers | Founder of Mount Vernon. |
| Albert | Speer | Minister armaments and war production during World War ll. |
| Joseph | Stalin | General secretary of Communist Party of Soviet Union. |
| Egi | Steen | Frances' brother. |
| Frances | Steen | One of the best liked students in the Goucher's class. Aka: Fran. |
| James | Stewart | American actor. |
| Dorothy | Stimson | Goucher's dean. |
| Henry | Stimson | Secretary of War. |
| Ruth W. | Stokes | Head Math and Astronomy Department at Winthtrop College. |
| E. E. | Stone | Navy officer. |
| Wilhelm | Styer | Chief of Staff of the Army Service Forces. |
| Esther A. | Sweeney | One of Wilma's team. |
| Charles | Taft | Son of the late president William Howard Taft. |
| William H. | Taft | 27th U.S. President. |
| Mrs. | Tally | One of the clerks. |
| David | Taylor | American business executive. |
| Delia | Taylor | Code breaker. |
| Jane | Thornton | Janice's childhood friend. |
| John | Tiltman | British officer. |
| Shigenori | Togo | Japanese Foreign Minister. |
| Harry | Truman | 33rd U.S. President. |
| Rupert | Trumble | Iris Flaspoller's boyfriend. |
| Donald J. | Trump | 45th U.S. President. |
| Alan | Turing | English mathematician, cryptanalyst and theoretical biologist. |
| Edith | Uhe | Psychology major student. |
| Bessie D. | Wall | One of Wilma's team. |
| Julia | Ward | Former dean at Bryn Mawr who built the Arlington Hall's Library. |
| Millie | Weatherly | Former telephone operator who joined the Navy. |
| W. S. | Weedon | Lieutenant and author. |
| Reuben | Weiss | Military man. |
| Kate | Wells | Elizabeth Gallup's sister. |
| Elizabeth | Wells Gallup | American educator. |
| Joseph | Wenger | Rear Admiral of the U.S. Navy. |
| Nan | Westcott | Botany major student. |
| Carolyn Ruth | Weston | Dot's best friend. Aka: Crow. |
| Ann | White | Senior student at Wellesley College. |
| Louise | Wilde | English major student. |
| Ethel | Wilson | WAVES member. |
| Eunice | Wilson Rice | Worked on codes of the Italian Navy. |
| Walter | Winchell | American columnist. |
| Ola | Winslaw | English professor. |
| Frank Lloyd | Wright | American architect. |
| Orville | Wright | Betty Bemis' acquaintance. |
| Isoroku | Yamamoto | Japanese Marshall Admiral. |
| Herbert | Yardley | American cryptologist. |
| Genevieve | Young Hitt | One of the first women to performed
crypto logic functions. |
| Arthur | Zimmermann | State Secretary for foreign affairs of the German Empire. |
| August | | Iris Flaspoller's husband. |
| Braden | | Dot's little boy. |
| Burt | | Louise Pearsall's brother. |
| Clyde | | Ruth's younger brother. |
| Forrest | | Edith Reynold's son. |
| Gus | | One of Dot's mutual friends. |
| Harry | | Dave Mirsky's brother. |
| Jack | | Elizabeth Bigelow's brother. |
| Jed | | Fran Steen's son. |
| Johnny | | Charles' little child. |
| Johnny | | One of Dot's mutual friends. |
| King George V | | Former King of the United Kingdom. |
| Kitty | | Ruth's younger sister. |
| Lib | | Worked on top secret joint project bet. Navy and private industry. |
| Liz | | Dot's friend. |
| Louise | | Ruth's older sister. aka: Sister. |
| Mary Lou | | Ida Mae's friend. |
| Miriam | | Worked at Dot's team. |
| Nelle | | Fabyan's wife. |
| Patsy | | Pet male chimpanzee. |
| Poochie | | Dog. |
| Roberta | | Suzanne's acquaintance. |
| Rosie | | Riveter. |
| Sarah | | Louise Pearsall's daughter. |
| William | | Louise Pearsall's brother. |
| Willie | | Charles' neighbor child. |
