In the Millowitsch theater, she played her first major role in the recorded for television 1955 comedy
The Sold Grandfather alongside
Willy Millowitsch, Elsa Scholten, Franz Schneider and others. In 1949, she and her friend and mentor Gustav Schellhardt founded the "Cologne Lustspielbühne", whose existence, however, was not long lasting. Throughout her life, she was proud of this project and mentioned it repeatedly in press interviews. After its bankruptcy, Trude Herr worked between 1949 and 1954 as a barmaid in the gay bar Barberina (Hohes Tor). From 1954 onwards, she performed at the carnival time again and again at the events of various clubs in Cologne as Büttenrednerin (carnival comedy speaker) and always earned great applause. In her performances, she followed the style of the well-known 1920s variety and revue singer Grete River. Trude Herr was discovered by
Willi Schaeffers, the head of the cabaret Tingel-Tangel, who engaged her in Berlin in 1958. With the German version of Percolator under the title "Ich will keine Schokolade (ich will lieber einen Mann)" (English: ''I do not want chocolate (I'd prefer a man)'') she reached No. 18 on the German hit charts. The song's German text was written by Carl-Ulrich Blecher. The song was performed by Herr in the German hit movie
Marina (where she played "Trude Pippes"). The film premiered on 19 August 1960 and featured 15 hits, helping Herr to achieve her 1960 breakthrough. Afterwards, she appeared in more than 30 films, made numerous appearances on television programs and was successful in the German
schlager genre. In August 1964, she took a five-month journey through the Saharan States, where in 1969 she met the Tunesian Tuareg Ahmed M'Barek. He accompanied her back to Germany, where they were married; the marriage lasted until 1976. With her own ensemble, she performed successfully in the Millowitsch Theater; from 16 September 1970 she delighted audiences in
The Pearl Anna, and from 21 September 1972 in
The Pütz Family. On 9 September 1977, she opened her folk theater Theater im Vringsveedel on Severinstraße. There she wanted to build a popular alternative to the established Millowitsch Theater. With plenty of Cologne humor and Kölsch sentimentality, garnished with a dose of vulgarity, she wrote and performed in pieces like
Die Kölsche Geisha (1977),
Der Hausmann and
Massage Salon Denz (1979),
Drei Glas Kölsch (1980),
Scheidung Auf Kölsch (1981),
Der Prophet (1985) and, as the last play,
Der zweite Frühling (1986). Her stage partner at this time was Hans Künster. The schedule lasted only from September to the end of December, the rest of the time the theater was rented out or was dark. Without municipal subsidies, which she vainly applied for in 1977 and 1982, the theater was financially constantly on weak feet. The very high visitor use rate of 97 percent did not change this either – the fixed costs, including for 21 employees, were too high. Even though it was one of the best attended theaters in
North Rhine-Westphalia, and also because of increasing health problems, she ended the theater experiment on 27 February 1986. In between theatrical productions, she worked in the
WDR Fernsehen television production of
Schöne Bescherung, which was broadcast in December 1983. Between October 1986 and January 1987, she recorded in the Info Studios in
Monheim am Rhein with producer Thomas Brück her album
Ich sage was ich meine ("I say what I mean") with international hits featuring German lyrics. The melancholic song
Niemals geht man so ganz ("You never leave completely"), which she interpreted with
Wolfgang Niedecken (BAP) and
Tommy Engel (
Bläck Fööss) was her last great success; it reached in No. 20 in the German charts in August 1986. == Last years ==