In 1998/2002, Rasmus successfully completed the Kontaktstudiengang Popularmusik (Popkurs) at the Hochschule für Musik und Theater Hamburg.

[4] For the German version of the BBC-Series Line of Duty, he dubbed Martin Compston in his role as Steve Arnott.

[6] Since 2011, Rasmus is the voice of the Sith Warrior in the German version of the online roleplay game Star Wars: The Old Republic.

[8] In 2004 Rasmus Borowski produced, wrote and directed the acclaimed short film Der Beste (The Old Pro) together with illustrator and director Arne Jysch.

In 2014 Rasmus Borowski composed the film score for the CBeebies series Teacup Travels together with Alexius Tschallener.

[11] [12] Teacup Travels is Rasmus' second collaboration with producer Micky MacPherson and director Simon Hynd for whom he wrote the score to the short film Meat the Campbells in 2005.