Theo was born on 16 December 1984. He was born in Oxford in England in United Kingdom. The name of his father is Philip Taptiklis who worked as a business consultant and the name of his father is Jane James and she worked for National Health Service. His parents had his roots in Greece and Scotland.

Theo also has 4 siblings and two of them are his brothers and two of them are his sisters. As per the information his complete childhood was spend in United Kingdom. He completed his schooling from Aylesbury Grammar School and he later enrolled into University of Nottingham. He received his training from Bristol Old Vic Theatre School.

Theo started his career at a very young age and the first TV series that he worked in was A Passionate Woman. He later got a chance to work in Downton Abbey and in 2012 he was also featured in Room at the Top. Theo also worked in You Will Meet a Tall Dark Stranger and later he also got a chance to work in The Domino Effect.

In 2011, Theo got a chance to work in Underworld Awakening. The movie was released in 2012 and the movie was a hit across the globe. It is also known that the movie made huge collections around the world.  The same year he worked in Case Sensitive. He also worked in The Divergent Series in 2014 and another series of this movie was released in 2016. Next series of the movie is set for release in 2017.

Theo also worked as a singer and he was the guitarist for one of the bands. The name of his band was Shere Khan. The band dissolved in 2012. In total, Theo worked in 11 movies and at present one of his movie is in post post-production stages. The name of the movie is Backstabbing for Beginners.

Another movie he worked in is set for released in 2017. The name of the movie is London Fields. In total, Theo worked in 6 TV series. He also won several awards. He basically won Teen Choice Award in 2014, 2015 and 2016. He won all three awards for The Divergent Series. He gained a lot of popularity because of these movies and his fan following is increasing exponentially.

It is known that at present Theo is dating Ruth Kearney and it is known that his also have plans to marry his girlfriend but his wedding has been cancelled once in 2016. The new dates of his marriage are not confirmed yet but there is no news of break up and the reason for the cancellation of wedding is also not known. Ruth is also known to be a famous Irish actress.

The annual salary of this 32 year old is not known but his total net worth is estimated to be 6 Million US Dollars. Theo is widely followed on social media and he is very popular on Instagram as well.