Szymon Solanski – (flat no. 6) private eye, former police officer. Lonely and antisocial. He doesn’t expect a lot from his life, since he’s lost his wife. His life is going to change when he meets Gucio, an old mongrel without one leg.
Gucio – (flat no. 6) mongrel who was saved from the shelter in Chorzów by Szymon Solanski. Gucio is greatful for giving him a real home but he still gives his (often ironic) opinions on everything. He helps Szymon in his detective work.
Roza Kwiatkowska – (flat no. 4) she’s obese and ribald and she likes to drink a lot. She’s a journalist and she secretly loves her friend, Szymon Solański. She’s loyal and honest and she has a good heart.
Anna, Tadeusz and Ewa Polaczek – (flat no. 1) Anna is a bookseller, Tadeusz is a teacher and their daughter Ewa is a rebellious teenager.
Brygida Buchta – (flat no. 2) she’s a true born Silesian. She spends most of her time with her pinscher monitoring the street from her kitchen window.
Adam and Hubert Gierloch – (flat no.3) twins who could not be more different. Adam, friendly and helpful, is a dancer. Hubert after years of emigration comes back home only to divest his brother’s flat.
Marianna Biel – (flat no. 5) former star of local theater. Now she’s forgotten by everybody.
Inspector Matusiak – former Szymon Solański’s boss. He works in Chorzów police station.
Sergeant Baranski – policeman from Chorzów. Szymon Solański has to fight with him all the time. He’s not very bright, but arrogant and malicious.
Sergeant Natalia Kamienska – female officer from Chorzów. She had an affair with Szymon Solański.
Sergeant Liam Murphy – an officer of the Garda Siochana (the police force of the Republic of Ireland). He was a boyfriend of Roza Kwiatkowska in “Murder over the cliff”.
Doctor Chisel – talkative veterinarian from Doggy’s Bone clinic. Gucio visits him from time to time (against his will).
Attorney Potomek-Chojarska – beautiful and selfish lawyer. She gets in touch with Solański from time to time, tempting detective.
Janusz Solanski – Szymon’s father, a retired police officer, nowdays drunkard and bum, who can`t cope in life.
Leokadia Solanska – Szymon’s mother. Tough woman who is disgusted with her son’s behavor.
Milena Swierszcz – theater director in Chorzow.
Piotr – IT specialist employed in „Chorzow News”, colleague of Roza Kwiatkowska.
Czeslaw Koszycki – former soldier, he hired Szymon Solanski for his missing granddaughter case in “Murder over the cliff”.
Lukasz Bol – store manager at The Beastie pet shop, boyfriend of Roza Kwiatkowska in #4 of The Doggy Crime Series.
Miroslaw Miszczak – businessman, husband of Potomek-Chojarska, Solanski`s main antagonist
Barbara Kwiatkowska – mother of Roza Kwiatkowska
Jerzy Kwiatkowski – father of Roza Kwiatkowska