| 1 | Alexandra | Cooper | Assist.
D.A., NY City, heads sex crimes unit; Aka Coop, Alex |
| | Lola | Dakota | King's College (Columbia U.) political science professor, abused wife, led project to excavate Roosevelt Island site |
| | Mike | Chapman | Homicide detective working with Alex Cooper |
| | Paul | Battaglia | NY District Attorney |
| | Ivan | Kralovic | Lola Dakota's husband, involved in shady financial dealings |
| | Jake | Tyler | NBC news correspondent dating Alex |
| 2 | Lily | Pompian | Lola Dakota's sister, lives in NJ |
| | Benjamin | Cooper | Alex's father, cardiac surgeon |
| | Mercer | Wallace | Homicide detective on sick leave, Chapman's former partner |
| | Lieut. Leo | Peterson | Police lieutenant, Chapman's superior |
| | Hector | Corrado | Homicide Squad police officer on duty at Dakota's apt. building |
| | Vinny | Sinnelesi | New Jersey prosecutor who planned the "sting" to get Ivan |
| 3 | George | Zotos | Police officer on Chapman's team searching Lola's apartment |
| | Jimmy | Boyle | Head of the "cybercop" detective squad |
| | Sylvia | Foote | General counsel of King's College |
| 4 | Pat | McKinney | Deputy chief of the DA's trial division, Alex's supervisor |
| | Laura | | Alex's secretary |
| | Rose | Malone | DA Battaglia's executive assistant |
| | Jody | Soellner | Lawyer in Alex's office |
| | Maxine | | Alex's paralegal |
| | Dr. | Kestenbaum | NY Coroner |
| 5 | Mickey | Diamond | NY Post reporter |
| | Paolo | Recantati | Acting president of King's College, formerly at Princeton U. |
| | Frankie | Shayson | Head of Security at King's College, former detective |
| | Marty | Hun | Detective in the Homicide Squad; aka Attila |
| | Charlotte | Voight | Student whose photo was posted in Dakota's office, missing from New York since the previous spring |
| 6 | Det. Hal | Sherman | Officer with the Crime Scene Unit |
| | Ryan | Blackmer | Lawyer at the Early Case Assessment Bureau (ECAB) |
| | Chief | Allee | Chief of Police, NYPD |
| | Patti | Rinaldi | Assistant NY DA |
| 7 | William & Elsa | | Alex's ballet instructor & hairdresser |
| | Neil | Pompian | Lily's husband, Lola Dakota's brother-in-law |
| | Anne | Reininger | New Jersey prosecutor handling Lola's case against Ivan |
| 7 | Cecile | Dakota | Lola's mother, former Broadway showgirl, aka Ceci |
| 8 | Vickee | Eaton | Detective 2nd grade, office of deputy commissioner for public information, former and future wife of Mercer Wallace |
| | Spencer | Wallace | Mercer's widowed father |
| 9 | Joan | Ryan | Counselor at Witness Aid Unit of NY DA's office |
| | Shirley | Danzig | Victim of an alleged attack, being counseled by Joan Ryan |
| | Ned | Tacchi | Detective in the Special Victims Unit of NYPD |
| | Joan | Stafford | Close friend of Alex |
| | Julian | Gariano | Student at King's College, suicide, campus drug dealer, lived with Charlotte Voight (missing student) the previous year |
| 10 | Joe Roman | | Detective in NYPD branch in Alex's office building |
| | Howard Kramer | | Litigator, managing partner at Sullivan & Cromwell |
| | Nan | Rothschild | Kramer's wife, ballet friend of Alex, prominent urban anthropologist, worked on a project at King's College with Lola |
| | Winston | Shreve | Head of King's College anthropology dept., invited Rothschild to lead a student project at the Octagon Tower |
| | Octagon Tower | | NYC's first lunatic asylum, on Roosevelt Island in the East River |
| | Ellen | Gunsher | Lawyer on McKinney's staff |
| | Pedro | de Jesus | Lawyer on McKinney's staff |
| | Judge Frances | Zavin | Judge |
| | Harold | Suggs | Accused sex offender |
| | Bobby | Abramson | Defense lawyer for Suggs |
| | Dr. | Hoppins | Psychologist with the Modality Alteration Center (MAC) in NYC |
| 11 | David | Fillian | Street kid drug dealer in jail for assault, might have informa-tion about King's College professor selling drugs |
| | Gloria | Reitman | Law student at Columbia University, former student of Lola's |
| | Skip | Lockhart | Professor of American History at King's College, |
| | Kristin | Baymer | King's College student, friend of Charlotte Voight |
| 12 | Thomas | Grenier | Head of the biology department at King's College |
| 13 | Bob | Thaler | Chief serologist in the crime lab |
| 15 | Dr. Claude | Lavery | Anthropology professor recruited to King's from John Jay |
| | Jesse | | Downstairs neighbor of Alex in her apartment building |
| | Catherine | Dashfer | Assistant DA, one of Alex's work colleagues |
| | Chester | Rubiera | Mental patient being held in Bird S. Coler hospital on Roose-velt Island, assaulted another patient |
| 16 | Bartholomew | Frankel | Executive assistant district attorney to Sinnelesi in NJ |
| 18 | Teague | Ryner | Detective in the Special Victims Unit |
| | Corinne | | Young woman claiming assault |
| 19 | Sandie | Herron | Physician at Bird Coler Psychiatric hospital |
| | Tina | | Developmentally disabled psychiatric patient who was assaulted at Coler |
| | Bentley | Vexter | Judge hearing Tina's case |
| 20 | Bo | Dietl | Private investigator, former NYPD detective |
| 21 | Orlyn | Lockhart | Skip Lockhart's grandfather, former lawyer, helped shut down the corrupt prison operation on Roosevelt Island |
| | Austin | MacCormick | Former Commissioner of the NY Dept. of Corrections |
| | Dutch | Schultz | Criminal in NYC, imprisoned in the penitentiary |
| | Joseph | Reggio | Criminal in NYC, imprisoned in the penitentiary but lived in luxury & ran drug operations there |
| | Edward | Cleary | Criminal in NYC, imprisoned in the penitentiary but lived in luxury & ran drug operations there |
| | Freeland | Jennings | Incarcerated at the penitentiary for murdering his wife, killed in the raid that shut down criminal operations there |
| 23 | Tony | Parisi | Detective in Sinnelesi's office |
| 28 | Lieutenant | DeGraw | Detective at the 19th Precinct |
| | Lieutenant | Grier | Detective at the 19th Precinct |
| | David & Renee | Mitchell | Psychiatrist & his wife who live down the hall from Alex in her apartment building |
| 29 | Valerie | Jacobsen | Architect, Mike Chapman's girlfriend |
| | Juan | Modesto | Assaulted & raped his girlfriend, Lavinia Cabrinas |
| | Neal | Fink | Judge in the Cabrinas/Modesto case |
| 31 | Efrem | Zavislan | King's student who worked with Lola on the excavations |
