Tønnesen began his career in film in the Danish comedy
Player. In 2014, he made his way into television by playing a regular role in the Danish series
Tidsrejsen. In 2015, he starred as Oliver in the short film
I Stykker. He resumed his foray into acting in 2018, taking on the role of Rasmus Andersen in the first Netflix Danish series,
The Rain at the age of sixteen. Tønnesen went on to star in multiple short films in subsequent years. In 2022, he took on a recurring role in a Netflix co-production series,
Borgen – Power & Glory, as
Magnus Nyborg Christensen. He later starred in the multilingual Netflix mystery-horror series
1899, created by
Baran bo Odar and
Jantje Friese.
Other ventures In 2020, Tønnesen became an ambassador for
Emporio Armani in the
EA Building Dialogues Fashion Show in Milan. He personally met
Giorgio Armani at that time. ==Filmography==