Martin Beck

Gösta Ekman, who played Martin Beck in the 1993/1994 film series of 6 books.

Martin Beck: The protagonist of the series, throughout the novels, Martin Beck goes from being an unhappily married man and father of two young teenagers, to a divorced man in a happy unmarried relationship with Rhea Nielsen, a kind and emphatic landlady whom Beck meets while investigating the death of a man who was Nielsen's tenant. Beck is prone to colds and often suffers from ailments and physical discomforts. Beck also gets several promotions, from Detective to Inspector, and Chief of the National Murder Squad by the end of the series, seemingly much to the chagrin of everyone involved, including himself as he hates the vision of being confined to desk work, though in Cop Killer, he is thankfully spared a promotion to a Commissioner. In The Terrorists, he is however forced to become Chief of Operations in an important job protecting an American senator, meaning that he is for once, in theory, higher in position than his superior, Malm. He is allowed to assemble his perfect team, consisting of himself, Larsson, Rönn, Skacke and Melander. He does extremely well coordinating the desk work and keeping in communication (through allowing Melander to handle all telephone communications, and diverting all telephone calls, or even switching off the telephone altogether whenever he needs time to think), impressing the Commissioner. In The Abominable Man he is shot and severely wounded, and quits smoking after the incident as his favourite manufacturer discontinues his preferred type of cigarette.

Lennart Kollberg: Beck's most trusted colleague; a sarcastic glutton with a Socialist worldview; served as a paratrooper. After having shot and killed a person in the line of duty by accident, he refuses to carry a gun. He is newly married in the second book and fathers two children over the course of the series. In The Fire Engine That Disappeared, he refers to Gunvald Larsson as "the stupidest detective in the history of criminal investigation", and in The Abominable Man, Larsson informs him, "I've always thought you were a fucking idiot", though they later end up, through working with each other on numerous investigations, understanding each other. He resigns from the force at the end of the penultimate book, Cop Killer, after realising he was ashamed of what the police force had become, but still has the last word in the final installment.

Mikael Persbrandt who played Larsson in the 1997-2015 film series.

Gunvald Larsson: A former member of the merchant marine and the black sheep of a rich family; he has a liking for expensive clothes and pulp fiction including the work of Sax Rohmer. He is also one of very few people outside East Germany who owns and drives a sports car manufactured by Eisenacher Motorenwerk. He is somewhat lacking in interpersonal skills and is disliked by most of his colleagues. He and Kollberg share a mutual antipathy, but are capable of working together efficiently when the occasion demands it. However, despite the fact that he often treats Einar Rönn with the same boorishness and insensitive tactlessness that he does everybody else, Rönn is his only friend and the two are close, often spending time together outside of the job. His rich, cultured family taught him how to behave correctly in all circumstances, something which the Commissioner notes that he tries to conceal. His upbringing has also meant that Larsson has a penchant for expensive clothes, not least tailored suits, which have a tendency to in various ways, get ruined during his investigations. He is tall and has china blue eyes, and is in extremely good shape, being noted as the best in the team at breaking down doors.

Einar Rönn: Larsson's friend from Arjeplog in the rural north of Sweden and married to a Lapp; permanently red-nosed, incapable of writing a coherent report and totally unimaginative, but a hard-working and efficient policeman. He is very calm and peaceful, only losing his temper once (on Larsson's behalf) in all the books. By the end of the series, Beck notes that he had defied all expectations to become a valuable asset to the team, and someone whom he could trust.

Benny Skacke: A young ambitious, overzealous and sometimes hapless detective. He is introduced in the fifth book as a new member of the homicide commission, but later transfers to Malmö for personal reasons. Skacke is still somewhat naïve, seeking to become police commissioner, but he is noted by Beck in the last book as having matured significantly.

Fredrik Melander: Noted for his flawless memory and for always being in the lavatory when anyone wants him. Melander is described as a first-class policeman in The Fire Engine That Disappeared, but also as very boring. Some of his other peculiar characteristics include his insistence on getting ten hours of sleep every night and his unreadable handwriting. He is also noted for having no temper and being immune to flattery. He later transfers to the Burglary and Theft division in an effort to avoid overtime. Therefore, he features only briefly in the later books in the series (except The Terrorists). In the Terrorists, his skill for being able to have a conversation with someone where despite a long conversation, nothing actually gets done, means that Beck puts him in charge of telephone communications.

Evald Hammar: Beck's boss until he retires in the end of The Fire Engine That Disappeared. He is mild-mannered, trusts his men's judgment and dislikes the political infighting which increasingly accompanies his job.

Stig Malm: Beck's boss from Murder at the Savoy onwards. A politician with little understanding of police work who is willing to do anything to get up the career ladder, for whom Beck eventually feels sorry by the end of the book; he is often ordered around by the National Police Commissioner. He has an overly high opinion of himself, not hampered by his one case as Chief of Operations ending in disaster.

Kurt Kvant and Karl Kristiansson

Lazy and inept partner patrolmen from Skåne who have a tendency to get shouted at by Larsson, at one point trampling all over a crime scene (and randomly shooting a hole in the roof of the crime scene) causing an investigation to take months as no footprints or fingerprints could be taken. After Kvant is killed in The Abominable Man, Kristiansson has a new partner, Kenneth Kvastmo, who is equally inept but far more zealous.

Per Månsson

A leisurely but very competent Malmö detective who becomes involved in several of Beck's cases. He is particularly known for his searching skills.

Åke Stenström

A young detective noted for his shadowing skills, who is killed in The Laughing Policeman.

Åsa Torell

Widow of Åke Stenström who later decides to become a cop herself. She appears prominently in Murder at the Savoy and The Terrorists.

Aldor Gustavsson

A very mediocre policeman, who bungles the initial investigation in The Locked Room.

Backlund

An unimaginative and rigid detective in Malmö.

Inga Beck

Martin Beck's wife, whom he later divorces.

Ingrid Beck

Martin Beck's daughter, often described as mature and independent and has a good relationship with her father, often going out for dinner together. She urges Beck to leave Inga.

Rolf Beck

Martin Beck's lazy son, with whom he has a poor relationship. Beck finally admits to himself in a later book that he dislikes the boy.

Rune Ek

One of the detectives. The character is usually minor, but appears more prominently in The Laughing Policeman.

Emil Elofsson and Gustav Borglund

Two partner patrolmen in Malmö. They appear in The Fire Engine that Disappeared and Cop Killer. In the later book, Borglund is killed by a wasp.

Norman Hansson

A uniformed police sergeant in some of the books.

Oskar Hjelm

A highly skilled but vain and temperamental forensic scientist, who is highly susceptible to flattery, something utilised on a daily basis by Beck.

Gun Kollberg

Kollberg's young wife and mother of his two children.

Rhea Nielsen

Martin Beck's new girlfriend after he divorces his wife. She is an open socialist, and enjoys cooking. The series ends with Kollberg and his wife Gun, and Beck and Nielson having a happy New Years' party, in a perfect atmosphere with Nielsen's delicious cooking. She is a landlady, having inherited a block of apartments, which, unlike many other landlords, she takes good care of, building a community around her apartments, which are deliberately cheaper than average, and well refurbished. She meets Beck in The Locked Room, as the ex-landlady of the deceased man. She is intelligent and straight-talking and is a social worker.

Herrgott Nöjd (Herrgott Allwright or Herrgott Content in English translations)

A down-to-earth police officer from the rural district of Anderslöv, who gets on well with just about anybody. Appears in the books Cop Killer and The Terrorists.

Sten Robert "Bulldozer" Olsson

A very busy, energetic and enthusiastic public prosecutor in charge of investigating and prosecuting bank robbers; has a big part in The Locked Room, where several fiascos occur under his watch when insists on personally overseesing the investigation a case He is known for being so busy with often 10 cases at once that he never appeals a case after losing, which he rarely does.

Strömgren

A Stockholm detective with a minor role in some of the books. Little is known about him, but he is disliked by both Beck and Larsson. In The Terrorists he apparently is a spy for Bulldozer Olsson.

Richard Ullholm

A pedantic and nit-picking detective in some of the books, who is constantly making official complaints of his colleagues over usually minor details.

Bo Zachrisson

Another very mediocre policeman, who appears in The Fire Engine That Disappeared and later lets the Prime Minister get assassinated in The Terrorists, after Eric Möller, the chief of Security Police, mistakes Larsson's "CS" (meaning Clod Squad) list of policemen who should not be used for any important duties, as the "Commando Section".

• 1967 – Roseanna (Sw) (based on Roseanna, starring Keve Hjelm)
• 1973 – The Laughing Policeman (US) (based on The Laughing Policeman, starring Walter Matthau, the setting is changed to San Francisco and the characters have different names)
• 1976 – Mannen på taket ("The man on the roof") (Sw) (based on The Abominable Man, starring Carl-Gustaf Lindstedt)
• 1979 – Nezakonchennyy uzhin ("The unfinished supper") (USSR) (based on Murder at the Savoy, starring Romualds Ancāns (lv)
• 1980 – Der Mann, der sich in Luft auflöste ("The man who disappeared into thin air") (Ger) (based on The Man Who Went Up in Smoke, starring Derek Jacobi)
• 1993 – Beck – De gesloten kamer ("Beck- the closed room") (Neth) (based on The Locked Room, starring Jan Decleir)

• 1993 – Roseanna (based on Roseanna)
• 1993 – Brandbilen som försvann (based on The Fire Engine That Disappeared)
• 1993 – Polis polis potatismos! (based on Murder at the Savoy)
• 1993 – Mannen på balkongen (based on The Man on the Balcony)
• 1994 – Polismördaren (based on Cop Killer)
• 1994 – Stockholm Marathon (loosely based on The Terrorists)