| Pro | Marie | Curie | Physicist discovered Radium.
First woman to win Nobel Prize. |
| | Pierre | Curie | A French physicist who discovered Radium. |
| | George | B. Shaw | An Irish Playwright. |
| | | | Part One - Knowledge |
| 1 | Katherine | Schaub | A watch dial painter. |
| | Mr. | Savoy | Katherine's boss. A studio manager. |
| | Anna | Rooney | The forewoman. Katherine's boss. |
| | Mae | C. Canfield | Katherine's trainer. |
| | Josephine | Smith | The Orange's forelady. |
| 2 | Woodrow | Wilson | The current U.S. President. |
| | Grace | Fryer | Katherine's co-worker. |
| | Daniel | Fryer | Grace's father. |
| | Adelaide | Fryer | Grace's sister. |
| | Irene | C. Porte | Katherine's co-worker. |
| | Mary | Corby | Irene's sister. |
| | Edna | B. Hussman | Katherine's co-worker. |
| | Albina | M. Larice | Katherine's co-worker. A daughter of an Italian immigrant. |
| | Amelia | Maggia | Albina's sister. Aka: Mollie. |
| | Eleanor | Eckert | Mollie's close friend. The first dial-painter who died in Radium. |
| | Ray | Canfield | A lab worker. |
| | Theodore | Kuser | Mechanic where Katherine works. Hazel's husband. |
| | Sabin | V. Sochocky | The founder of Orange Radium firm. |
| | George | Willis | Sabin's co-founder of Orange Radium firm. |
| 3 | Quinta | M. McDonald | A new watch dial painter. Albina's sister. |
| | James | McDonald | Quinta's husband. |
| | Sarah | C. Maillefer | Marguerite Carlough's sister. |
| | Marguerite | Carlough | Sarah's sister. |
| | Marguerite | Maillefer | Sarah's daughter. |
| | Henry | Maillefer | Sarah's husband. |
| | Sarah (2) | Carlough | Sarah and Marguerite's mother. |
| | Stephen | Carlough | Sarah and Marguerite's father. |
| | Jane | Stocker | A new watch dial painter at Orange. Aka: Jennie. |
| | Helen | Quinlan | A new watch dial painter at Orange. |
| | Irene | Rudolph | Katherine's cousin. |
| | Arthur | Roeder | The Orange's new treasurer. |
| 4 | Helen | McDonald | Quinta and James's daughter. |
| | Genevieve | Smith | Josephine's little sister. |
| | Howard | Barker | The Orange's vice-president. |
| | James | Larice | Albina's husband. |
| | | | USRC - United States Radium Corporation. |
| 5 | Dr. Joseph | Knef | Mollie's dentist. |
| | Edith | Mead | A trained nurse. Mollie's caregiver. |
| | Valerio | Maggia | The Maggia sister's father. |
| 6 | Joseph | Kelly | The President at Radium Dial company. |
| | Lottie | Murray | The studio's superintendent at Radium Dial. |
| | Catherine | Wolfe | Lottie's first
successful applicant. A dial painter at Radium Dial. |
| | Bridget | Wolfe | Catherine's mother. |
| | Maurice | Wolfe | Catherine's father. |
| | Charlotte | Nevins | Catherine's co-worker. |
| | Mary | Vicini | An Italian dial painter. Catherine's co-worker. |
| | Rufus | Reed | Lottie's assistant superintendent. |
| | Mercedes | Reed | Rufus's wife. The Radium Dial's instructress. Aka: Mercy. |
| 7 | Dr. Walter | Berry | Irene's dentist. |
| | Dr. James | Davidson | Walter's partner. |
| | Dr. | Allen | A doctor who reported the case of phosphorus poisoning. |
| | Harold | Veidt | The USRC vice-president. |
| | John | Roach | The deputy commissioner of the New Jersey department. |
| | Lilian | Erskine | A police inspector. |
| | Dr. | Szamatolski | The consulting chemist of the Department of Labor. |
| | | | JAMA - Journal of the American Medical Association. |
| 8 | Margaret | Looney | A dial painter at Radium Dial. Catherine's wife. Aka: Peg. |
| | Darlene | | Peg's niece. |
| | Marie | Becker | A new dial painter at Radium Dial. |
| | Benny | Goodman | An American artist. |
| | Mary Ellen | Cruse | A dial painter at Radium Dial. Aka: Ella. |
| | Duffy | Robinson | A dial painter at Radium Dial. |
| | Ruth | Thompson | A dial painter at Radium Dial. |
| | Sadie | Pray | A dial painter at Radium Dial. |
| | Dela | Harveston | A dial painter at Radium Dial who died of tuberculosis. |
| | Inez | Corcoran | A dial painter at Radium Dial. |
| 9 | Nellie | Quinlan | Helen's mother. |
| | Robert | McDonald | Quinta and James's son. |
| | Lenore | Young | Orange's health officer. |
| | Catherine | O'Donnell | Katherine's co-worker. |
| | Olive | West-Witt | A dial painter at Radium Dial. |
| 10 | Frances | Glacinski | A dial painter at Radium Dial. |
| | Marguerite | Glacinski | Frances's sister. |
| | Helen | Munch | A dial painter. |
| | Pearl | Payne | A dial painter at Radium Dial. Catherine's close friend. |
| | Jean | Looney | Peg's sister. |
| | Jane | Looney | Peg's sister. |
| 11 | Dr. Harrison | Martland | A Newark physician. |
| | Dr. Robert | Humphries | Grace's doctor.
Head doctor at Orange Orthopedic Hospital. |
| | Dr. Theodore | Blum | One of America's first oral surgeons. |
| | Theodore | Kuser Sr. | Theo's father. |
| | Andrew | McBride | John Roach's boss. |
| | Grace | Vincent | Hazel's mother. |
| 12 | Dr. Cecil | Drinker | A psychology professor at Harvard School of Public Health. |
| | Dr. Katherine | Drinker | Cecil's wife. |
| | Dr. | Castle | Dr. Drinker's colleague. |
| | Dr. Edwin | Leman | The chief chemist at United States Radium Corporation. |
| 14 | William | Schaub | Katherine's father. |
| | Karl | Quimby | Hazel's priest. |
| | Dr. Alice | Hamilton | The founder of industrial toxicology. Katherine's ally. |
| | Rufus | Fordyce | Radium Dial's president. |
| | Katherine | Wiley | The executive secretary of Consumers League. |
| | Charles | Hackensmith | Peg's husband. Aka: Chuck. |
| | Patrick | Rossiter | Marie Becker's
fiancé. |
| | Ethelbert | Stewart | A man who runs the Bureau of Labor Statistics. |
| | Swen | Kjaer | Ethelbert's agent. A poisoning investigator. |
| 16 | Frances | Splettstotcher | A dial painter. Deceased. |
| 17 | Frederick | Hoffman | The investigating statistician at Prudential Insurance Company. |
| | Mr. Josiah | Stryker | The USRC company lawyer. |
| | Dr. Frederick | Flinn | A doctor who
specialized in industrial hygiene. |
| | William | Bailey | Man who produced Radithor. |
| | George | Warren | A physician. Deceased. |
| 18 | Stephen | Carlough | Sarah and Marguerite's cousin. |
| 19 | Isidor | Kalitsch | Marguerite's lawyer. |
| | | | Part Two - Power |
| 20 | Ethel | Brelitz | Quinta's sister-in-law. |
| | Henry | Gottfried | Grace's new lawyer. |
| | Dr. | Beling | A nerve specialist. |
| 21 | Edna | Hussman | A dial painter. Aka: The
Dresden doll. |
| | Elizabeth | Dunn | A dial painter at Waterbury Clock company. |
| | Dr. | Conlon | Dr. Knef's colleague. |
| | Dr. James | Ewing | A radium medicine specialist. |
| 22 | Clarence | Lee | The Vice-President at USRC headquarters in New York. |
| 23 | John | O'Connell | Frances's husband. |
| | Francis | Robinson | Mary Duffy's husband. |
| | Joseph | Tonielli | Mary Vicini's
fiancée. |
| | Albert | Purcell | Charlotte's husband. |
| | Thomas | Donohue | Catherine's husband. Aka: Tom. |
| | Vincent Lloyd | Vallat | The proprietor of a gas station. Inez's husband. |
| | Raymond | Herst-Berry | A lawyer who runs the Potter & Berry firm. |
| | Louis | Hussman | Edna Bolz's husband. |
| 26 | Nellie | Cruse | Ella's mother. |
| | James | Cruse | Ella's father. |
| | John | Cruse | Ella's brother. |
| 27 | Elizabeth | Hughes | Von Sochocky's former assistant. A physicist. |
| | Edward | Markley | The lead attorney for USRC's
defense. |
| 28 | John | Backes | A Vice Chancellor. |
| | William | Schlundt | A close friend of Howard. The USRC company doctor. |
| 29 | Frank | Bradner | The Radium
Girls lawyer. |
| | Hervey | Moore | The Radium Girls lawyer. |
| | Walter | Lippman | Berry's ally. An editor. |
| | Norman | Thomas | A socialist politician. |
| 31 | Judge | Mountain | A court judge. |
| | Rose | | Mr. Berry's secretary. |
| | William | Clark | Mr. Berry's old boss. A judge. |
| 33 | Dr. Lord | Craver | James Ewing's friend. A committee doctor. |
| | Dr. Edward | Krumbhaar | The Radium
Girls appointed physician. |
| | Dr. | Failla | One of the attending doctors. |
| 34 | Dr. Aaron | Arkin | A doctor who'd done the autopsy of the body of Peg. |
| 35 | Ethel | | Quinta's sister-in-law. |
| 36 | Donald | Purcell | Al and Charlotte' son. |
| | Alphonse | Vicini | Mary Vicini's brother. |
| 37 | Vincent | La Porte | Irene's husband. |
| | Charles | Lindbergh | The famous aviator. |
| 38 | Patricia | Purcell | Charlotte's daughter. |
| 39 | Eben | Byers | A world renowned industrialist. |
| | | | FTC - Federal Trade
Commission. |
| | | | Part Three - Justice |
| 41 | Tommy | Donohue | Catherine and Tom's son. |
| | Mary | | Tom's niece. |
| | James | | Catherine's nephew. |
| 42 | Charles | Loffler | A blood specialist. |
| | Dr. Marshall | Davison | Charlotte's doctor. |
| 43 | Jay | Cook | A Chicago lawyer. |
| | Susie | Robinson | Duffy's mother. |
| 44 | Hobart | Payne | Pearl's husband. |
| | Mr. | Turner | A manager of a plant under Mrs. Reed. |
| 45 | | | IIC - Illinois Industrial
Commission. |
| | Clarence | Darrow | A famous lawyer. |
| | Mary Jane | Donohue | Catherine's daughter. |
| 46 | Mary | Doty | A reporter at Chicago Daily Times. |
| | Jerome | Rosenthal | Catherine, Charlotte, and Marie's new attorney. |
| | Frances | Perkins | The secretary of labor. |
| | Elmer | Mohn | Tom Donohue's attorney. A state attorney. |
| 47 | William | Ganley | The Radium Dial's new president. |
| 48 | Leonard | Grossman | The Radium Dial's new attorney. |
| | Len | Grossman | Leonard's son. |
| | Arthur | Magid | The leading attorney in Inez Vallat's case. |
| 49 | Carol | Reiser | Leonard's secretary. |
| | Trudel | Grossman | Leonard's wife. |
| | Father | Griffin | Catherine's friend. A priest. |
| | Eleanor | Taylor | The Donohue's live-in-nanny. |
| | Dr. | Weiner | An X-ray specialist. |
| | Clarence | Witt | Olive's husband. |
| | George | Marvel | The judge from Catherine's trial. |
| Epi | | | CHR - The Center for Human Radiobiology. |
| | Dolores | | Marie Becker's daughter in law. |
| | | | EPA - The U.S.
Environmental Protection Agency. |
