Question: Who acted in the Tatort investigators series based in the second largest city of Ruhr area ?

text: Tatort
List of Tatort investigators ( Kommissare )

Tatort (Crime scene) is a German language police procedural television series that has been running continuously since 1970 with some 30 feature-length episodes per year, which makes it the longest-running German TV drama. Developed by the German public-service broadcasting organisation ARD for their channel Das Erste, it is unique in its approach, in that it is jointly produced by all of the organisation's regional members as well as its partnering Austrian and Swiss national public-service broadcasters, whereby every regional station contributes a number of episodes to a common pool. Therefore, the series is a collection of different police stories where different police teams each solve crimes in their respective city. Uniqueness in architecture, customs and dialects of the cities is therefore a distinctive part of the series and often the city, not the police force is the real main character of an episode. The concept of local stations only producing a couple of shows per year has also enabled the shows to be longer (90 minutes) and more fleshed out psychologically than other weekly TV dramas. The first episode was broadcast on 29 November 1970. Episodes are broadcast on ARD's main channel Das Erste on Sunday evening at the prime viewing time of 8.15 pm (just after the 8 o'clock Tagesschau news) around three times a month. Reruns are often shown by various regional ARD stations and on foreign broadcasters. Next to the member stations of the ARD, the National Austrian broadcasting corporation Österreichischer Rundfunk joined the production pool in 1971 and airs the program on its ORF 2 channel. Switzerland's Schweizer Fernsehen joined the pool from 1990 to 2001 and again in 2011 and distributes its episodes through its channel SRF 1. The series Polizeiruf 110, which was produced by East Germanys state TV broadcaster as a counterpart to the West German Tatort and has a similar regional production approach, is still produced by ARD's regional broadcasters Mitteldeutscher Rundfunk (MDR), Rundfunk Berlin-Brandenburg (RBB), Norddeutscher Rundfunk (NDR) and Bayerischer Rundfunk (BR). Polizeiruf 110 shares the Sunday night prime time slot on Das Erste with Tatort.
Year Broadcast Station Investigators Actors City Number of Episodes
1970-1982 NDR Paul Trimmel Walter Richter Hamburg 11
1970-1973 SR Liersdahl and Schäfermann Dieter Eppler Saarbrücken 2
1971-1973 WDR Kressin Sieghardt Rupp Cologne 7
1971-1986 SDR Eugen Lutz Werner Schumacher 8 different towns in Baden-Württemberg 16
1971-1979 HR Konrad Klaus Höhne Frankfurt am Main 8
1971-1978 NDR Finke Klaus Schwarzkopf Kiel and other places in Schleswig-Holstein 7
1971-1983 ORF Viktor Marek Fritz Eckhardt Vienna 13
1971-1972 SFB Erwin Kasulke Paul Esser West Berlin 2
1972-1981 BR Melchior Veigl Gustl Bayrhammer Munich 15
1972 SWF Horst Pflüger Ernst Jacobi Baden-Baden 1
1973 RB Walter Böck Hans Häckermann Bremen 1
1973-1977 SWF Franz Gerber Heinz Schimmelpfennig Baden-Baden 5
1974-1980 WDR Heinz Haferkamp Hansjörg Felmy Essen 20
1974-1977 NDR Heinz Brammer Knut Hinz Hanover 4
1975-1977 SFB Martin Schmidt Martin Hirthe West Berlin 3
1977-1984 SR Schäfermann Manfred Heidmann Saarbrücken 4
1978-1980 SWF Marianne Buchmüller Nicole Heesters Mainz 3
1978-1983 HR Bergmann Heinz Treuke ( 1978 ) , Lutz Moik ( 1981-1983 ) Frankfurt am Main 3
1978-1979 SFB Matthias Behnke Hans-Peter Korff West Berlin 2
1979 NDR Nagel Diether Krebs Braunschweig 1