| Sgt. | Allred | A Nevada Highway Patrol trooper. |
| Rita | Anderson | Major Lee's wife. |
| Greg | Armstrong | CIA agent. |
| Jack | Avery | Jack Ryan's alias. |
| Hilda Frau | Battenberg | Richter's manners and evolution instructor. |
| Heather | Beasley | A UFO watcher. |
| Felix | Becker | A gymnast. |
| Pat | Benatar | American singer-songwriter. |
| Truly | Bishop | CIA officer, East Berlin Station. |
| | Blackwell | A navy pilot. |
| David | Bowie | English singer-songwriter. |
| Lane | Buckley | CIA assistant deputy director. |
| Konstantin | Chernenko | General Secretary of the Communist Party of the Soviet Union. |
| John | Clark | CIA operations officer, Special activities division. |
| Richard | Cobb | Worked with the U.S. office of Strategic Services. |
| Calvin | Coolidge | 30th U.S. President. |
| Peter | Crane | Jack Ryan's alias. |
| Paul | Davis | A murder suspect. |
| William J. | Donovan | Founding Father of the CIA. aka: Wild Bill. |
| Gary | Dundees | An aviator. aka: Heeler. |
| Billy | Dunn | CIA operation officer, West Berlin Base. |
| Dolly | Dupont | Jen North's alias. |
| Donna | Everett | One of the first female graduate of the US Air Force Academy. |
| Farrah | Fawcett | American actress. |
| Percy | Fawcett | A British geographer. |
| Franz | Ferdinand | Heir presumptive to the throne of Austria-Hungary. |
| Dave | Finn | A colonel. Murray's new acquaintance. |
| Ian | Fleming | British writer. |
| Ed | Foley | CIA chief of Station in Moscow. |
| Mary Pat | Foley | CIA operations officer in Moscow. |
| Aretha | Franklin | American singer-songwriter. |
| Dieter | Fuchs | Former thief turned assassin. |
| Dr. | Galkin | Elke's acquaintance. |
| Nathan | Gillum | OSI special agent. |
| Jerry | Gonzales | The Elko RA. |
| Mitzi | Graff | A Stasi guard. |
| | Green | Salt Lake City agent. |
| James | Greer | Deputy Director of the CIA. |
| Boone | Grissom | A military policeman. |
| Betty | Harris | FBI special agent from Washington Field office. |
| Elke | Hauptman | A professional singer in East Berlin. |
| Freddie | Heinrich | A punk rocker. |
| Adolf | Hitler | Austrian-born German politician who was dictator of Germany. |
| Erich | Honecker | General secretary of the DDR. |
| J. Edgar | Hoover | Served as the first Director of the Federal Bureau of Investigation. |
| Skip | Hulse | CIA chief, West Berlin Base. |
| Sato | Ichiro | Clark's acquaintance. |
| Ruby | Keller | A State Department Foreign Service officer. |
| John | Kelly | A retired U.S. marine corps. |
| John F. | Kennedy | 35th U. S. President. |
| Nikita | Khrushchev | First Secretary of the Communist Party of the Soviet Union. |
| Leon | Klinghoffer | A wheelchair-bound. |
| Marita | Koch | East German runner. |
| Selma | Kraus | Former East German Olympic swimmer turned
assassin. |
| | LaRue | Salt Lake County deputy sheriff. |
| Boden | Lee | A pilot. aka: Slinky. |
| Abraham | Lincoln | 16th U.S. President. |
| Gustav | Mahler | Austrian late-Romantic composer |
| Groucho | Marx | American comedian. |
| Dennis | McCambridge | An Army Intel signals clerk with the Berlin Brigade. |
| Erich | Mielke | Ran the East German Ministry for State Security. |
| Vladimir | Mikhailov | A KGB junior officer, East Berlin. |
| Arthur | Moore | A judge. |
| Carol | Morandini | CIA cipher clerk, West Berlin Base. |
| | Morino | CIA agent. |
| Daniel | Murray | FBI special agent. |
| Miyamoto | Musashi | A Japanese philosopher. |
| Jason | Newell | CIA chief of the East Berlin. |
| Jennifer | North | CIA operations officer, West Berlin Base. |
| Maeve | Norwood | Jack's Jr. girlfriend. |
| Warren James | Norwood | Honorable member of the Parliament. |
| Jane | O'Keefe | A flight attendant worked for British Secret Intelligence Service. |
| George | Ortiz | A resident agent in the Reno FBI office. |
| Tony | Pena | A staff sergeant. |
| Kurt | Pfeiffer | A Stasi major, East Berlin. |
| Ivan | Popov | A KGB major officer, East Berlin. |
| Gavrilo | Princip | A Black Hand assassin. |
| Sergeant | Ramirez | McCambridge's colleague. |
| Marko | Ramius | A deputy defector. |
| | Rawlings | A special agent. |
| Robert | Redford | American actor. |
| Burt | Reynolds | American actor. |
| Garit | Richter | Stasi HVA illegal in the United States. |
| Robert | Ritter | CIA Deputy Director on operations. |
| Chief | Robbins | A pilot. aka: Slinky. |
| Bob | Robertson | American former baseball player. |
| Mike | Rogers | A member of Helsinki team. |
| Caroline | Ryan | An ophthalmic surgeon. aka: Cathy. |
| John Patrick | Ryan | CIA liaison officer. aka: Jack. |
| John Patrick | Ryan Jr. | Cathy and Jack's son. |
| Rolfe | Schneider | A Stasi officer. |
| Herr | Schuman | A general prosecutor for the Ministry of Justice. |
| Arnold | Schwarzenegger | Former governor of California. |
| Lorna | Shuman | Hauptman's neighbor. |
| Buck | Smith | A pilot. aka: Slinky. |
| Colonel | Spoon | Lee's commander. |
| Robert | Stethem | A U.S. Navy driver. |
| Firefighter | Steve | One of the UFO watchers. |
| | Taylor | A tech guy. |
| Harry S. | Truman | 33rd president of the United States. |
| Gunter | Wolfe | A Stasi guard. |
| Marta | Wunch | Pfeiffer's secretary. |
| Evgeni | Zima | A KGB colonel, East Berlin. |
| Andreyer | | A Soviet colonel. |
| Christina | | Herr Schuman's wife. |
| Dave | | A new agent from Alabama. |
| Floyd | | Opie's partner. |
| Gisselle | | Elke's sister. |
| Hansie | | Elke Hauptman's son. |
| Jonas | | A guard. |
| Linus | | Dieter's father. |
| Little Eddie | | Foley's son. |
| Lumberjack | | Allred's acquaintance. |
| Nicholas II | | Last Emperor of Russia. |
| Opie | | A surveillance goon. |
| Peggy | | An Amtrak staffer. |
| Potter | | Murray's acquaintance. |
| Pritchard | | FBI special agent. |
| Rodgers | | An Amtrak agent. |
| Sally | | Cathy and Jack's daughter. |
| Takako | | Sato's friend. |
| Tanner | | A lead firearms instructor. |
| Uwe | | An aeronautical physicist. Elke's husband. |
