Van der Horst studied English studies and German studies at University of Cologne. He then initially worked as a speaker and author for radio, such as appearing on the "Bürgerfunk" show on Radio Cologne, where he also worked on the youth magazine "Mehr von mehr". Then he did an internship at 1LIVE radio station. Then from 2000 working on television, he worked as a gag writer for the Cologne-based production company 'Brainpool' like Die Wochenshow, Rent a Pocher and TV total. He then worked as a freelance writer for other comedy shows such as Switch Reloaded, comedy sketch showSechserpack and Harald Schmidt. From December 2001, Van der Horst also appeared for the first time in front of the camera. On the ProSiebennetwork ShowTV total, he appeared in a pink rabbit costume as a bubble hare blowing a carrot. Together with Manuel Butt and Thomas Rogel, who later was also a writer for the heute-show in 2008, they founded the office N2O Comedy in 2008. Note is the chemical formula for nitrous oxide. Van der Horst has also been cast member of the German late-night satirical television programHeute-show since 2009. He is nicknamed the "Political Terror". Then from 2011 to 2012, he and Senna Guemmour hosted the quiz show Iss oder quizz on the ZDF channel. In 2012, he worked as a reporter in Monika Grubers boulevard satire Leute, Leute! on German public broadcast ZDF. Since 2013 he with Christiane Stenger have been hosting Wie werd' ich …? on German broadcaster ZDFneo. The show tries to explain scientific phenomena with humor. On the radio 1LIVE and on stage, he has an unsuccessful stand-up comedian personna named 'Jimmy Breuer' Germany's worst comedian, who has deliberately wrong punch times at the wrong time, is the exact opposite of a skilled joke professional. He has toured with 'Jimmy Breuer' such as 36 shows in 2011. Since September 2016, he plays the prison supervisor "Frosch" in Johann Strauss's operetta Die Fledermaus at the Hessisches Staatstheater Wiesbaden. In November 2016, the AfD in Bayern used his face for a campaign poster, for the cancellation of TV broadcasting fees, without his permission. He used his position as satire-external reporter on the "Heute Show" to criticize the political party. He tried to sue them for 5000 euros in damages, but eventually got seven euros and ten cents from members outside the party congress. In 2018, a new SAT.1 show was created, "Hotel Herzklopfen - Late in love!" presented by Van der Horst, Sarah Mangione and Daniel Boschmann.
Personal life
He lives in Ehrenfeld, Cologne and is a member of the SPD in the context of a satirical heute-show contribution in 2016. He supports equality of lesbians and gays. He is a big fan of horror films and has a very extensive collection of zombie and cannibal films from the late 1970s.