- Current Main CharactersClick to expand Capt. Olivia Benson, Sgt. Odafin "Fin" Tutuola, ADA Dominick "Sonny" Carisi Jr., Det. Joe Velasco, Det. Grace Muncy
- Former Main CharactersClick to expand Capt. Donald Cragen, Sgt. John Munch, Det. Elliot Stabler, Det. Monique Jeffries, ADA Alexandra "Alex" Cabot, Dr. Melinda Warner, Dr. George Huang, ADA Casey Novak, Det. Chester Lake, ADA Kim Greylek, Det. Nick Amaro, ADA Rafael Barba, ADA Peter Stone, Det. Katriona "Kat" Tamin, Deputy Chief Christian Garland, Det. Amanda Rollins
- PoliceClick to expand Capt. Ed Tucker, Capt. Steven Harris, Lt. Declan Murphy, Sgt. Michael "Mike" Dodds, Det. Brian Cassidy, Det. Danielle "Dani" Beck, Det. Nate Kendall, Det. Ashok Ramsey, Deputy Chief William Dodds, Det. Frank Bucci, Det. Robert "Doom" Dumas, Sgt. Kevin Donlan, Deputy Commissioner Hank Abraham, Det. Dave Duethorn, Det. Ray Lopez
- Medical And Forensic ExpertsClick to expand Dr. Rebecca Hendrix, Forensic Technician Burt Trevor, Forensic Technician Ryan O'Halloran, CSU Technician Dale Stuckey, TARU Technician Ruben Morales, Medical Examiner Taylor
- Judicial SystemClick to expand Judge Lena Petrovsky, Judge Elizabeth Donnelly, Judge Barry Moredock, ADA Erica Alden, ADA Sonya Paxton, ADA Jo Marlowe, ADA Gillian Hardwicke, ADA Isaiah Holmes, Roger Kressler, Trevor Langan, Carolyn Maddox, Donna Emmett, Oliver Gates, Lionel Granger, Rebecca Balthus, Nikki Staines, Simone Bryce, Matthew Braden, Miranda Pond, Patrice LaRue, John Buchanan, Sherri West, Bayard Ellis, Barry Querns, Rita Calhoun, Minonna Efron, Pippa Cox
- Federal GovernmentClick to expand Agent Dana Lewis, Agent Dean Porter, Agent Jack Hammond
- Family MembersClick to expand Serena Benson, Simon Marsden, Noah Porter-Benson, Ellie Porter, Sheila Porter, Kathy Stabler, Maureen Stabler, Kathleen Stabler, Dickie Stabler, Elizabeth Stabler, Elliot "Eli" Stabler Jr., Ken Randall, Teresa Randall, Darius Parker, Kim Rollins, Beth Anne Rollins, Jesse Rollins, Billie Rollins, Maria Grazie, Zara Amaro, Cesaria Amaro
- Other CharactersClick to expand Sister Peg, Reverend Curtis, William Lewis, Dr. Greg Yates, Dr. Carl Rudnick, Bronwyn Freed Wilkins, Rob Miller, Bart Ganzel, Dr. Cap Jackson