After engagements at the Schauspiel Bochum, Theater Dortmund and Staatstheater Darmstadt, he has worked freelance.

He has frequently played in TV series such as Tatort, Der Alte, Derrick, Ein Fall für zwei and Siska.

His roles have included Mephisto in Goethe's Urfaust, Cyrano in Pavel Kohout's Der arme Cyrano, the title role in Brecht's Der aufhaltsame Aufstieg des Herrn Arturo Ui, and Salieri in Shaffer's Amadeus.

In 1995, he began to stage his own theatre productions on tour, presenting for example Patrick Süßkind's Der Kontrabaß, Die Sternstunde des Josef Bieder and Deutschland, Deine Hessen.

[5] In 2018, he appeared at the Rheingau Musik Festival in a show titled Aus dem Leben eines Taugenichts, borrowing the title of the novella by Eichendorff (in English given as Memoirs of a Good-for-Nothing) and presenting Renneisen's life including 50 years on stage, in literature and in music.