Thomas Ottersen was born on March 28, 1990 in Oslo as Thomas Bremnes Ottersen. At the age of 15 Thomas joined the Norwegian musical theater group «Cap á pied» which further peaked his interest in the performing arts. He later enjoyed playing the role of «Rolfe» in a production of Sound of Music and that of «Ernst» in Spring Awakening. Thomas enrolled at the Liverpool Institute for the Performing Arts where he obtained a BA with Honours in Acting in 2013. He is currently living in London.