Jonathan Sand played the role of composer Johann Sebastian Bach in a school play at the end of the 90s, and has since then followed his passion for the performing arts. To train himself in expressing himself on stage, he attended Sollentuna Fria gymnasium's aesthetic program with a focus on theater from 2008 to 2011. In 2017, he attended a beginner training course at Kulturama led by Michael Hamory, which helped him develop his acting skills.