After being involved in competitive sports (athletics 800–1500 m, 1981), he moved to Cologne, where he completed his business degree.
In 1983, with Ralf Günther and Wolfgang Lüchtrath, he founded the comedy theatre group, The Niegelungen;[1] they recorded more than 1,500 performances in the next eleven years.
In 1992, Deuser made his directorial debut with A Midsummer Night's Dream in Koblenz.
[2] The following year, Deuser participated in the RTL show as MC and in 1995 won first prize in the Koblenz Children's Theatre Festival.
[5] Deuser and his company have produced CD and radio projects for comedians such as Mario Barth and Holger Müller, known for the role Instructor Schmidt.