Nevsky series

Tank (Nikita Vasilevsky): Crime boss and Mikhailov's informant.
· Nazar: The prison overseer with whom Pasha interacted.

Family, loved ones and others

Yulia Chernitsyna (Semyonova) (Maria Kapustinskaya): Pavel's first wife. She was convicted of manslaughter and later lived with Foma. Killed by a hitman in season 5.
· Alexander Semyonov (Sasha): Son of Pavel and Yulia.
Veniamin Lapshin (Ruslan Balbutsiev): Semyonov's neighbor, a petty criminal, later a hired killer. Killed by Semyonov.
· Maria Lapshina (Natalya Shaposhnikova): Veniamin’s mother, the Semyonovs’ neighbor.
Elena Lopatkina (Nina Molchanova): Waitress, Semyonov's lover. Killed by Zakharov.
Igor Zakharov (Anton Sychev): Operative, captain, cold-blooded killer. Killed by Semyonov.

· Sergei Kondratyev (Andrey Korovnichenko): General, in season 8 he returns to his previous position, which exacerbates the conflict with Mikhailov and Okunko.
· Yuri Okunko (Nikolai Gorshkov): Police colonel, long-standing conflict with General Kondratyev.

Police and FSB officers (minor)

Vasily Tuchkov (Mikhail Karpenko): A former KGB guardsman, major in the Internal Security Directorate, then lieutenant colonel and colonel in the FSB. A reserved, principled loner, viewers consider him the most underrated hero.
Leonid Kundryakov (Alexander Konev): Operative, police captain. A loyal colleague of Semyonov and Mikhailov.
Inga Krylova (Ekaterina Rokotova): Investigator for the Investigative Committee, Captain of Justice. Daughter of Oleg Markin, ex-fiancée of Andrei Mikhailov.
· Alexander Boyko (Konstantin Filchenkov): Investigator of the Investigative Committee, lieutenant colonel, then colonel of justice.
· Evgeniy Kudren (Ilya Kuznetsov): Operative, police captain, transferred from the Kalininsky district to the Central one.
Denis Somov (Sergey Ionkin): An operative, a werewolf in uniform. He killed Yuri Zinoviev.
· Alexander Maximov (Denis Starkov): A character appearing in season 8.
· Maria Zavyalova (Anastasia Zabirova): Former employee, lawyer in season 8.

The criminal world and antagonists
-Vladimir Shubin (Alexander Razbash): A retired police colonel who became a hired killer, "The Architect." He was killed in episode 172.
Alexander Ladygin (Dmitry Sutyrin): Professional killer, one of the "Architects". Killed by the Musician.
Musician (Vladimir Chernyshev): Former KGB officer in Alaska, contract killer. Killed by Semyonov.
Mikhail Sharovarov ("Sharovar") (Sergey Mardar): Owner of a vodka distillery and crime boss. Killed by hitmen.
Maxim Shakhtin ("Miner") (Anatoly Kondyubov): Crime boss. Killed by the Musician on Yulia's orders.
Ivan Lesnov ("The Forester") (Yuri Sysoev): A crime boss and Foma's cousin. Blown up by Foma in episode 168.
· Vyacheslav Streltsov (Yuri Elagin): Colonel, head of the criminal investigation department of the Main Directorate of the Ministry of Internal Affairs, Arsenyev's henchman. Killed by Somov

Main characters (the core of the series):
Pavel Semyonov (Anton Vasiliev): The central character. He rose from a captain in a residential area to a lieutenant colonel in the Main Directorate of the Ministry of Internal Affairs. In Season 8, his death was revealed to be staged by the FSB; he hides on Foma's island to catch the Architect.
Alexey Fomin (Foma) (Dmitry Palamarchuk): A crime boss, the "overseer" of St. Petersburg, and Semyonov's best friend. He was "killed" in Season 3, but survived, fled to the United States, and returned. In Season 8, he is hiding on an island with Pavel and Tatyana.
Andrei Mikhailov (Andrei Gulnev): A police colonel, Semyonov's friend and partner. A reflective character who maintains a sense of humanity while on duty. In season 8, he falls into a deadly trap while apprehending a murderer.
Tatyana Belova (Victoria Maslova): Semyonov's wife, a former operative. After an assassination attempt and the faking of her husband's death, she goes into hiding abroad and is wanted by the FSB. In Season 8, she becomes a central figure.
The leadership of the Ministry of Internal Affairs, the FSB and the prosecutor's office
Gennady Lyubimov (Sergey Koshonin): Colonel, department head, balancing between the system and the law. Evgeny Arsenyev (Alexander Sayutalin): The main antagonist of the first seasons. A colonel, then a general, willing to do anything for power. Sayutalin died in 2024, which influenced the plot.
· Sergei Semenchuk (Yuri Arkhangelsky): Police colonel, head of the district department, who has traveled a long path with Semenov.
Oleg Markin (Igor Pavlov): He rose from a colonel in the Justice Department to major general and head of the Main Directorate of the Ministry of Internal Affairs. He was arrested and acquitted at the end of season 6 and appears in season 8.
Viktor Syrkov (Dmitry Lebedev): "A werewolf in uniform." Colonel, then major general. Arrested in episode 111, he was under state protection in season 6.
Valery Korytin (Kirill Boltaev): An FSB colonel. He faked Semyonov's death to use him as bait for the Architect. Tatyana Belova calls him "daddy."
Georgy Pankratov (Andrey Kuzin): FSB General, Head of the FSB Directorate for St. Petersburg (seasons 5–7)