He was born in The Netherlands and grew up in Bussum, a town nearby Amsterdam. When he was 13 Thomas moved to Athens, Greece and attended a British high school where he started performing. During the summer breaks, Jansen attended Interlochen Arts Camp and the Guildford School of Acting. He later went on to study musical theatre at the University of Miami where he will graduate in the spring of 2017.
|2013||A Place Called Home||Student||Movie Role|
|2017–||Hunter Street||Daniel Hunter||Main Role|
- His birthday is unknown to the public.